1639240

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{383}}^1$

素因数の和:501

約数の個数: 32

約数和(自身を含む): 3732480

約数和(自身を除く): 2093240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 383, 428, 535, 766, 856, 1070, 1532, 1915, 2140, 3064, 3830, 4280, 7660, 15320, 40981, 81962, 163924, 204905, 327848, 409810, 819620, 1639240]

約数ペア:

[(1, 1639240), (2, 819620), (4, 409810), (5, 327848), (8, 204905), (10, 163924), (20, 81962), (40, 40981), (107, 15320), (214, 7660), (383, 4280), (428, 3830), (535, 3064), (766, 2140), (856, 1915), (1070, 1532)]