79709980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^2\times {\mathrm{677}}^1$

素因数の和:751

約数の個数: 72

約数和(自身を含む): 198420768

約数和(自身を除く): 118710788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 677, 812, 841, 1015, 1354, 1682, 2030, 2708, 3364, 3385, 4060, 4205, 4739, 5887, 6770, 8410, 9478, 11774, 13540, 16820, 18956, 19633, 23548, 23695, 29435, 39266, 47390, 58870, 78532, 94780, 98165, 117740, 137431, 196330, 274862, 392660, 549724, 569357, 687155, 1138714, 1374310, 2277428, 2748620, 2846785, 3985499, 5693570, 7970998, 11387140, 15941996, 19927495, 39854990, 79709980]

約数ペア:

[(1, 79709980), (2, 39854990), (4, 19927495), (5, 15941996), (7, 11387140), (10, 7970998), (14, 5693570), (20, 3985499), (28, 2846785), (29, 2748620), (35, 2277428), (58, 1374310), (70, 1138714), (116, 687155), (140, 569357), (145, 549724), (203, 392660), (290, 274862), (406, 196330), (580, 137431), (677, 117740), (812, 98165), (841, 94780), (1015, 78532), (1354, 58870), (1682, 47390), (2030, 39266), (2708, 29435), (3364, 23695), (3385, 23548), (4060, 19633), (4205, 18956), (4739, 16820), (5887, 13540), (6770, 11774), (8410, 9478)]