68972740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{11933}}^1$

素因数の和:11976

約数の個数: 36

約数和(自身を含む): 153876996

約数和(自身を除く): 84904256

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 5780, 11933, 23866, 47732, 59665, 119330, 202861, 238660, 405722, 811444, 1014305, 2028610, 3448637, 4057220, 6897274, 13794548, 17243185, 34486370, 68972740]

約数ペア:

[(1, 68972740), (2, 34486370), (4, 17243185), (5, 13794548), (10, 6897274), (17, 4057220), (20, 3448637), (34, 2028610), (68, 1014305), (85, 811444), (170, 405722), (289, 238660), (340, 202861), (578, 119330), (1156, 59665), (1445, 47732), (2890, 23866), (5780, 11933)]