82908980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{7691}}^1$

素因数の和:7725

約数の個数: 72

約数和(自身を含む): 220975776

約数和(自身を除く): 138066796

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2695, 5390, 7691, 10780, 15382, 30764, 38455, 53837, 76910, 84601, 107674, 153820, 169202, 215348, 269185, 338404, 376859, 423005, 538370, 592207, 753718, 846010, 1076740, 1184414, 1507436, 1692020, 1884295, 2368828, 2961035, 3768590, 4145449, 5922070, 7537180, 8290898, 11844140, 16581796, 20727245, 41454490, 82908980]

約数ペア:

[(1, 82908980), (2, 41454490), (4, 20727245), (5, 16581796), (7, 11844140), (10, 8290898), (11, 7537180), (14, 5922070), (20, 4145449), (22, 3768590), (28, 2961035), (35, 2368828), (44, 1884295), (49, 1692020), (55, 1507436), (70, 1184414), (77, 1076740), (98, 846010), (110, 753718), (140, 592207), (154, 538370), (196, 423005), (220, 376859), (245, 338404), (308, 269185), (385, 215348), (490, 169202), (539, 153820), (770, 107674), (980, 84601), (1078, 76910), (1540, 53837), (2156, 38455), (2695, 30764), (5390, 15382), (7691, 10780)]