31393980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{19379}}^1$

素因数の和:19400

約数の個数: 60

約数和(自身を含む): 98489160

約数和(自身を除く): 67095180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 19379, 38758, 58137, 77516, 96895, 116274, 174411, 193790, 232548, 290685, 348822, 387580, 523233, 581370, 697644, 872055, 1046466, 1162740, 1569699, 1744110, 2092932, 2616165, 3139398, 3488220, 5232330, 6278796, 7848495, 10464660, 15696990, 31393980]

約数ペア:

[(1, 31393980), (2, 15696990), (3, 10464660), (4, 7848495), (5, 6278796), (6, 5232330), (9, 3488220), (10, 3139398), (12, 2616165), (15, 2092932), (18, 1744110), (20, 1569699), (27, 1162740), (30, 1046466), (36, 872055), (45, 697644), (54, 581370), (60, 523233), (81, 387580), (90, 348822), (108, 290685), (135, 232548), (162, 193790), (180, 174411), (270, 116274), (324, 96895), (405, 77516), (540, 58137), (810, 38758), (1620, 19379)]