205128240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{349}}^1$

素因数の和:475

約数の個数: 160

約数和(自身を含む): 666624000

約数和(自身を除く): 461495760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 79, 80, 93, 120, 124, 155, 158, 186, 237, 240, 248, 310, 316, 349, 372, 395, 465, 474, 496, 620, 632, 698, 744, 790, 930, 948, 1047, 1185, 1240, 1264, 1396, 1488, 1580, 1745, 1860, 1896, 2094, 2370, 2449, 2480, 2792, 3160, 3490, 3720, 3792, 4188, 4740, 4898, 5235, 5584, 6320, 6980, 7347, 7440, 8376, 9480, 9796, 10470, 10819, 12245, 13960, 14694, 16752, 18960, 19592, 20940, 21638, 24490, 27571, 27920, 29388, 32457, 36735, 39184, 41880, 43276, 48980, 54095, 55142, 58776, 64914, 73470, 82713, 83760, 86552, 97960, 108190, 110284, 117552, 129828, 137855, 146940, 162285, 165426, 173104, 195920, 216380, 220568, 259656, 275710, 293880, 324570, 330852, 413565, 432760, 441136, 519312, 551420, 587760, 649140, 661704, 827130, 854701, 865520, 1102840, 1298280, 1323408, 1654260, 1709402, 2205680, 2564103, 2596560, 3308520, 3418804, 4273505, 5128206, 6617040, 6837608, 8547010, 10256412, 12820515, 13675216, 17094020, 20512824, 25641030, 34188040, 41025648, 51282060, 68376080, 102564120, 205128240]

約数ペア:

[(1, 205128240), (2, 102564120), (3, 68376080), (4, 51282060), (5, 41025648), (6, 34188040), (8, 25641030), (10, 20512824), (12, 17094020), (15, 13675216), (16, 12820515), (20, 10256412), (24, 8547010), (30, 6837608), (31, 6617040), (40, 5128206), (48, 4273505), (60, 3418804), (62, 3308520), (79, 2596560), (80, 2564103), (93, 2205680), (120, 1709402), (124, 1654260), (155, 1323408), (158, 1298280), (186, 1102840), (237, 865520), (240, 854701), (248, 827130), (310, 661704), (316, 649140), (349, 587760), (372, 551420), (395, 519312), (465, 441136), (474, 432760), (496, 413565), (620, 330852), (632, 324570), (698, 293880), (744, 275710), (790, 259656), (930, 220568), (948, 216380), (1047, 195920), (1185, 173104), (1240, 165426), (1264, 162285), (1396, 146940), (1488, 137855), (1580, 129828), (1745, 117552), (1860, 110284), (1896, 108190), (2094, 97960), (2370, 86552), (2449, 83760), (2480, 82713), (2792, 73470), (3160, 64914), (3490, 58776), (3720, 55142), (3792, 54095), (4188, 48980), (4740, 43276), (4898, 41880), (5235, 39184), (5584, 36735), (6320, 32457), (6980, 29388), (7347, 27920), (7440, 27571), (8376, 24490), (9480, 21638), (9796, 20940), (10470, 19592), (10819, 18960), (12245, 16752), (13960, 14694)]