20065600

素因数分解:

$2^6\times 5^2\times {\mathrm{12541}}^1$

素因数の和:12563

約数の個数: 42

約数和(自身を含む): 49377854

約数和(自身を除く): 29312254

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 12541, 25082, 50164, 62705, 100328, 125410, 200656, 250820, 313525, 401312, 501640, 627050, 802624, 1003280, 1254100, 2006560, 2508200, 4013120, 5016400, 10032800, 20065600]

約数ペア:

[(1, 20065600), (2, 10032800), (4, 5016400), (5, 4013120), (8, 2508200), (10, 2006560), (16, 1254100), (20, 1003280), (25, 802624), (32, 627050), (40, 501640), (50, 401312), (64, 313525), (80, 250820), (100, 200656), (160, 125410), (200, 100328), (320, 62705), (400, 50164), (800, 25082), (1600, 12541)]