20177480

素因数分解:

$2^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{1429}}^1$

素因数の和:1793

約数の個数: 32

約数和(自身を含む): 45559800

約数和(自身を除く): 25382320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 353, 706, 1412, 1429, 1765, 2824, 2858, 3530, 5716, 7060, 7145, 11432, 14120, 14290, 28580, 57160, 504437, 1008874, 2017748, 2522185, 4035496, 5044370, 10088740, 20177480]

約数ペア:

[(1, 20177480), (2, 10088740), (4, 5044370), (5, 4035496), (8, 2522185), (10, 2017748), (20, 1008874), (40, 504437), (353, 57160), (706, 28580), (1412, 14290), (1429, 14120), (1765, 11432), (2824, 7145), (2858, 7060), (3530, 5716)]