20741608

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{887}}^1$

素因数の和:1009

約数の個数: 32

約数和(自身を含む): 40492800

約数和(自身を除く): 19751192

約数列:

[1, 2, 4, 8, 37, 74, 79, 148, 158, 296, 316, 632, 887, 1774, 2923, 3548, 5846, 7096, 11692, 23384, 32819, 65638, 70073, 131276, 140146, 262552, 280292, 560584, 2592701, 5185402, 10370804, 20741608]

約数ペア:

[(1, 20741608), (2, 10370804), (4, 5185402), (8, 2592701), (37, 560584), (74, 280292), (79, 262552), (148, 140146), (158, 131276), (296, 70073), (316, 65638), (632, 32819), (887, 23384), (1774, 11692), (2923, 7096), (3548, 5846)]