18580640

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8933}}^1$

素因数の和:8961

約数の個数: 48

約数和(自身を含む): 47278728

約数和(自身を除く): 28698088

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 8933, 17866, 35732, 44665, 71464, 89330, 116129, 142928, 178660, 232258, 285856, 357320, 464516, 580645, 714640, 929032, 1161290, 1429280, 1858064, 2322580, 3716128, 4645160, 9290320, 18580640]

約数ペア:

[(1, 18580640), (2, 9290320), (4, 4645160), (5, 3716128), (8, 2322580), (10, 1858064), (13, 1429280), (16, 1161290), (20, 929032), (26, 714640), (32, 580645), (40, 464516), (52, 357320), (65, 285856), (80, 232258), (104, 178660), (130, 142928), (160, 116129), (208, 89330), (260, 71464), (416, 44665), (520, 35732), (1040, 17866), (2080, 8933)]