81530260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{3049}}^1$

素因数の和:3256

約数の個数: 48

約数和(自身を含む): 196761600

約数和(自身を除く): 115231340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 191, 382, 764, 955, 1337, 1910, 2674, 3049, 3820, 5348, 6098, 6685, 12196, 13370, 15245, 21343, 26740, 30490, 42686, 60980, 85372, 106715, 213430, 426860, 582359, 1164718, 2329436, 2911795, 4076513, 5823590, 8153026, 11647180, 16306052, 20382565, 40765130, 81530260]

約数ペア:

[(1, 81530260), (2, 40765130), (4, 20382565), (5, 16306052), (7, 11647180), (10, 8153026), (14, 5823590), (20, 4076513), (28, 2911795), (35, 2329436), (70, 1164718), (140, 582359), (191, 426860), (382, 213430), (764, 106715), (955, 85372), (1337, 60980), (1910, 42686), (2674, 30490), (3049, 26740), (3820, 21343), (5348, 15245), (6098, 13370), (6685, 12196)]