31142980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{757}}^1$

素因数の和:805

約数の個数: 72

約数和(自身を含む): 76215384

約数和(自身を除く): 45072404

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 121, 170, 187, 220, 242, 340, 374, 484, 605, 748, 757, 935, 1210, 1514, 1870, 2057, 2420, 3028, 3740, 3785, 4114, 7570, 8228, 8327, 10285, 12869, 15140, 16654, 20570, 25738, 33308, 41140, 41635, 51476, 64345, 83270, 91597, 128690, 141559, 166540, 183194, 257380, 283118, 366388, 457985, 566236, 707795, 915970, 1415590, 1557149, 1831940, 2831180, 3114298, 6228596, 7785745, 15571490, 31142980]

約数ペア:

[(1, 31142980), (2, 15571490), (4, 7785745), (5, 6228596), (10, 3114298), (11, 2831180), (17, 1831940), (20, 1557149), (22, 1415590), (34, 915970), (44, 707795), (55, 566236), (68, 457985), (85, 366388), (110, 283118), (121, 257380), (170, 183194), (187, 166540), (220, 141559), (242, 128690), (340, 91597), (374, 83270), (484, 64345), (605, 51476), (748, 41635), (757, 41140), (935, 33308), (1210, 25738), (1514, 20570), (1870, 16654), (2057, 15140), (2420, 12869), (3028, 10285), (3740, 8327), (3785, 8228), (4114, 7570)]