1970980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1$

素因数の和:85

約数の個数: 72

約数和(自身を含む): 4951296

約数和(自身を除く): 2980316

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 31, 34, 44, 55, 62, 68, 85, 110, 124, 155, 170, 187, 220, 289, 310, 340, 341, 374, 527, 578, 620, 682, 748, 935, 1054, 1156, 1364, 1445, 1705, 1870, 2108, 2635, 2890, 3179, 3410, 3740, 5270, 5780, 5797, 6358, 6820, 8959, 10540, 11594, 12716, 15895, 17918, 23188, 28985, 31790, 35836, 44795, 57970, 63580, 89590, 98549, 115940, 179180, 197098, 394196, 492745, 985490, 1970980]

約数ペア:

[(1, 1970980), (2, 985490), (4, 492745), (5, 394196), (10, 197098), (11, 179180), (17, 115940), (20, 98549), (22, 89590), (31, 63580), (34, 57970), (44, 44795), (55, 35836), (62, 31790), (68, 28985), (85, 23188), (110, 17918), (124, 15895), (155, 12716), (170, 11594), (187, 10540), (220, 8959), (289, 6820), (310, 6358), (340, 5797), (341, 5780), (374, 5270), (527, 3740), (578, 3410), (620, 3179), (682, 2890), (748, 2635), (935, 2108), (1054, 1870), (1156, 1705), (1364, 1445)]