69719620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{809}}^1$

素因数の和:988

約数の個数: 48

約数和(自身を含む): 152409600

約数和(自身を除く): 82689980

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 139, 155, 278, 310, 556, 620, 695, 809, 1390, 1618, 2780, 3236, 4045, 4309, 8090, 8618, 16180, 17236, 21545, 25079, 43090, 50158, 86180, 100316, 112451, 125395, 224902, 250790, 449804, 501580, 562255, 1124510, 2249020, 3485981, 6971962, 13943924, 17429905, 34859810, 69719620]

約数ペア:

[(1, 69719620), (2, 34859810), (4, 17429905), (5, 13943924), (10, 6971962), (20, 3485981), (31, 2249020), (62, 1124510), (124, 562255), (139, 501580), (155, 449804), (278, 250790), (310, 224902), (556, 125395), (620, 112451), (695, 100316), (809, 86180), (1390, 50158), (1618, 43090), (2780, 25079), (3236, 21545), (4045, 17236), (4309, 16180), (8090, 8618)]