81792620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{3457}}^1$

素因数の和:3499

約数の個数: 72

約数和(自身を含む): 212625504

約数和(自身を除く): 130832884

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 169, 182, 260, 338, 364, 455, 676, 845, 910, 1183, 1690, 1820, 2366, 3380, 3457, 4732, 5915, 6914, 11830, 13828, 17285, 23660, 24199, 34570, 44941, 48398, 69140, 89882, 96796, 120995, 179764, 224705, 241990, 314587, 449410, 483980, 584233, 629174, 898820, 1168466, 1258348, 1572935, 2336932, 2921165, 3145870, 4089631, 5842330, 6291740, 8179262, 11684660, 16358524, 20448155, 40896310, 81792620]

約数ペア:

[(1, 81792620), (2, 40896310), (4, 20448155), (5, 16358524), (7, 11684660), (10, 8179262), (13, 6291740), (14, 5842330), (20, 4089631), (26, 3145870), (28, 2921165), (35, 2336932), (52, 1572935), (65, 1258348), (70, 1168466), (91, 898820), (130, 629174), (140, 584233), (169, 483980), (182, 449410), (260, 314587), (338, 241990), (364, 224705), (455, 179764), (676, 120995), (845, 96796), (910, 89882), (1183, 69140), (1690, 48398), (1820, 44941), (2366, 34570), (3380, 24199), (3457, 23660), (4732, 17285), (5915, 13828), (6914, 11830)]