20505030

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:103

約数の個数: 192

約数和(自身を含む): 65499840

約数和(自身を除く): 44994810

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 29, 30, 35, 37, 39, 42, 49, 58, 65, 70, 74, 78, 87, 91, 98, 105, 111, 130, 145, 147, 174, 182, 185, 195, 203, 210, 222, 245, 259, 273, 290, 294, 370, 377, 390, 406, 435, 455, 481, 490, 518, 546, 555, 609, 637, 735, 754, 777, 870, 910, 962, 1015, 1073, 1110, 1131, 1218, 1274, 1295, 1365, 1421, 1443, 1470, 1554, 1813, 1885, 1911, 2030, 2146, 2262, 2405, 2590, 2639, 2730, 2842, 2886, 3045, 3185, 3219, 3367, 3626, 3770, 3822, 3885, 4263, 4810, 5278, 5365, 5439, 5655, 6090, 6370, 6438, 6734, 7105, 7215, 7511, 7770, 7917, 8526, 9065, 9555, 10101, 10730, 10878, 11310, 13195, 13949, 14210, 14430, 15022, 15834, 16095, 16835, 18130, 18473, 19110, 20202, 21315, 22533, 23569, 26390, 27195, 27898, 32190, 33670, 36946, 37555, 39585, 41847, 42630, 45066, 47138, 50505, 52577, 54390, 55419, 69745, 70707, 75110, 79170, 83694, 92365, 97643, 101010, 105154, 110838, 112665, 117845, 139490, 141414, 157731, 184730, 195286, 209235, 225330, 235690, 262885, 277095, 292929, 315462, 353535, 418470, 488215, 525770, 554190, 585858, 683501, 707070, 788655, 976430, 1367002, 1464645, 1577310, 2050503, 2929290, 3417505, 4101006, 6835010, 10252515, 20505030]

約数ペア:

[(1, 20505030), (2, 10252515), (3, 6835010), (5, 4101006), (6, 3417505), (7, 2929290), (10, 2050503), (13, 1577310), (14, 1464645), (15, 1367002), (21, 976430), (26, 788655), (29, 707070), (30, 683501), (35, 585858), (37, 554190), (39, 525770), (42, 488215), (49, 418470), (58, 353535), (65, 315462), (70, 292929), (74, 277095), (78, 262885), (87, 235690), (91, 225330), (98, 209235), (105, 195286), (111, 184730), (130, 157731), (145, 141414), (147, 139490), (174, 117845), (182, 112665), (185, 110838), (195, 105154), (203, 101010), (210, 97643), (222, 92365), (245, 83694), (259, 79170), (273, 75110), (290, 70707), (294, 69745), (370, 55419), (377, 54390), (390, 52577), (406, 50505), (435, 47138), (455, 45066), (481, 42630), (490, 41847), (518, 39585), (546, 37555), (555, 36946), (609, 33670), (637, 32190), (735, 27898), (754, 27195), (777, 26390), (870, 23569), (910, 22533), (962, 21315), (1015, 20202), (1073, 19110), (1110, 18473), (1131, 18130), (1218, 16835), (1274, 16095), (1295, 15834), (1365, 15022), (1421, 14430), (1443, 14210), (1470, 13949), (1554, 13195), (1813, 11310), (1885, 10878), (1911, 10730), (2030, 10101), (2146, 9555), (2262, 9065), (2405, 8526), (2590, 7917), (2639, 7770), (2730, 7511), (2842, 7215), (2886, 7105), (3045, 6734), (3185, 6438), (3219, 6370), (3367, 6090), (3626, 5655), (3770, 5439), (3822, 5365), (3885, 5278), (4263, 4810)]