56915480

素因数分解:

$2^3\times 5^1\times {\mathrm{653}}^1\times {\mathrm{2179}}^1$

素因数の和:2843

約数の個数: 32

約数和(自身を含む): 128314800

約数和(自身を除く): 71399320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 653, 1306, 2179, 2612, 3265, 4358, 5224, 6530, 8716, 10895, 13060, 17432, 21790, 26120, 43580, 87160, 1422887, 2845774, 5691548, 7114435, 11383096, 14228870, 28457740, 56915480]

約数ペア:

[(1, 56915480), (2, 28457740), (4, 14228870), (5, 11383096), (8, 7114435), (10, 5691548), (20, 2845774), (40, 1422887), (653, 87160), (1306, 43580), (2179, 26120), (2612, 21790), (3265, 17432), (4358, 13060), (5224, 10895), (6530, 8716)]