640924900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:120

約数の個数: 324

約数和(自身を含む): 1895128704

約数和(自身を除く): 1254203804

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 23, 25, 28, 35, 44, 46, 47, 49, 50, 55, 70, 77, 92, 94, 98, 100, 110, 115, 121, 140, 154, 161, 175, 188, 196, 220, 230, 235, 242, 245, 253, 275, 308, 322, 329, 350, 385, 460, 470, 484, 490, 506, 517, 539, 550, 575, 605, 644, 658, 700, 770, 805, 847, 940, 980, 1012, 1034, 1078, 1081, 1100, 1127, 1150, 1175, 1210, 1225, 1265, 1316, 1540, 1610, 1645, 1694, 1771, 1925, 2068, 2156, 2162, 2254, 2300, 2303, 2350, 2420, 2450, 2530, 2585, 2695, 2783, 3025, 3220, 3290, 3388, 3542, 3619, 3850, 4025, 4235, 4324, 4508, 4606, 4700, 4900, 5060, 5170, 5390, 5405, 5566, 5635, 5687, 5929, 6050, 6325, 6580, 7084, 7238, 7567, 7700, 8050, 8225, 8470, 8855, 9212, 10340, 10780, 10810, 11132, 11270, 11374, 11515, 11858, 11891, 12100, 12397, 12650, 12925, 13475, 13915, 14476, 15134, 16100, 16450, 16940, 17710, 18095, 19481, 21175, 21620, 22540, 22748, 23030, 23716, 23782, 24794, 25300, 25333, 25850, 26950, 27025, 27830, 28175, 28435, 29645, 30268, 32900, 35420, 36190, 37835, 38962, 39809, 42350, 44275, 46060, 47564, 49588, 50666, 51700, 52969, 53900, 54050, 55660, 56350, 56870, 57575, 59290, 59455, 61985, 69575, 72380, 75670, 77924, 79618, 83237, 84700, 88550, 90475, 97405, 101332, 105938, 108100, 112700, 113740, 115150, 118580, 118910, 123970, 126665, 130801, 136367, 139150, 142175, 148225, 151340, 159236, 166474, 177100, 180950, 189175, 194810, 199045, 211876, 230300, 237820, 247940, 253330, 261602, 264845, 272734, 278300, 278663, 284350, 296450, 297275, 309925, 332948, 361900, 378350, 389620, 398090, 416185, 487025, 506660, 523204, 529690, 545468, 557326, 568700, 582659, 592900, 594550, 619850, 633325, 654005, 681835, 756700, 796180, 832370, 915607, 974050, 995225, 1059380, 1114652, 1165318, 1189100, 1239700, 1266650, 1308010, 1324225, 1363670, 1393315, 1664740, 1831214, 1948100, 1990450, 2080925, 2330636, 2533300, 2616020, 2648450, 2727340, 2786630, 2913295, 3270025, 3409175, 3662428, 3980900, 4161850, 4578035, 5296900, 5573260, 5826590, 6409249, 6540050, 6818350, 6966575, 8323700, 9156070, 11653180, 12818498, 13080100, 13636700, 13933150, 14566475, 18312140, 22890175, 25636996, 27866300, 29132950, 32046245, 45780350, 58265900, 64092490, 91560700, 128184980, 160231225, 320462450, 640924900]

約数ペア:

[(1, 640924900), (2, 320462450), (4, 160231225), (5, 128184980), (7, 91560700), (10, 64092490), (11, 58265900), (14, 45780350), (20, 32046245), (22, 29132950), (23, 27866300), (25, 25636996), (28, 22890175), (35, 18312140), (44, 14566475), (46, 13933150), (47, 13636700), (49, 13080100), (50, 12818498), (55, 11653180), (70, 9156070), (77, 8323700), (92, 6966575), (94, 6818350), (98, 6540050), (100, 6409249), (110, 5826590), (115, 5573260), (121, 5296900), (140, 4578035), (154, 4161850), (161, 3980900), (175, 3662428), (188, 3409175), (196, 3270025), (220, 2913295), (230, 2786630), (235, 2727340), (242, 2648450), (245, 2616020), (253, 2533300), (275, 2330636), (308, 2080925), (322, 1990450), (329, 1948100), (350, 1831214), (385, 1664740), (460, 1393315), (470, 1363670), (484, 1324225), (490, 1308010), (506, 1266650), (517, 1239700), (539, 1189100), (550, 1165318), (575, 1114652), (605, 1059380), (644, 995225), (658, 974050), (700, 915607), (770, 832370), (805, 796180), (847, 756700), (940, 681835), (980, 654005), (1012, 633325), (1034, 619850), (1078, 594550), (1081, 592900), (1100, 582659), (1127, 568700), (1150, 557326), (1175, 545468), (1210, 529690), (1225, 523204), (1265, 506660), (1316, 487025), (1540, 416185), (1610, 398090), (1645, 389620), (1694, 378350), (1771, 361900), (1925, 332948), (2068, 309925), (2156, 297275), (2162, 296450), (2254, 284350), (2300, 278663), (2303, 278300), (2350, 272734), (2420, 264845), (2450, 261602), (2530, 253330), (2585, 247940), (2695, 237820), (2783, 230300), (3025, 211876), (3220, 199045), (3290, 194810), (3388, 189175), (3542, 180950), (3619, 177100), (3850, 166474), (4025, 159236), (4235, 151340), (4324, 148225), (4508, 142175), (4606, 139150), (4700, 136367), (4900, 130801), (5060, 126665), (5170, 123970), (5390, 118910), (5405, 118580), (5566, 115150), (5635, 113740), (5687, 112700), (5929, 108100), (6050, 105938), (6325, 101332), (6580, 97405), (7084, 90475), (7238, 88550), (7567, 84700), (7700, 83237), (8050, 79618), (8225, 77924), (8470, 75670), (8855, 72380), (9212, 69575), (10340, 61985), (10780, 59455), (10810, 59290), (11132, 57575), (11270, 56870), (11374, 56350), (11515, 55660), (11858, 54050), (11891, 53900), (12100, 52969), (12397, 51700), (12650, 50666), (12925, 49588), (13475, 47564), (13915, 46060), (14476, 44275), (15134, 42350), (16100, 39809), (16450, 38962), (16940, 37835), (17710, 36190), (18095, 35420), (19481, 32900), (21175, 30268), (21620, 29645), (22540, 28435), (22748, 28175), (23030, 27830), (23716, 27025), (23782, 26950), (24794, 25850), (25300, 25333)]