2156560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{3851}}^1$

素因数の和:3871

約数の個数: 40

約数和(自身を含む): 5731776

約数和(自身を除く): 3575216

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 3851, 7702, 15404, 19255, 26957, 30808, 38510, 53914, 61616, 77020, 107828, 134785, 154040, 215656, 269570, 308080, 431312, 539140, 1078280, 2156560]

約数ペア:

[(1, 2156560), (2, 1078280), (4, 539140), (5, 431312), (7, 308080), (8, 269570), (10, 215656), (14, 154040), (16, 134785), (20, 107828), (28, 77020), (35, 61616), (40, 53914), (56, 38510), (70, 30808), (80, 26957), (112, 19255), (140, 15404), (280, 7702), (560, 3851)]