20994910

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1\times {\mathrm{317}}^1$

素因数の和:540

約数の個数: 32

約数和(自身を含む): 39152160

約数和(自身を除く): 18157250

約数列:

[1, 2, 5, 10, 37, 74, 179, 185, 317, 358, 370, 634, 895, 1585, 1790, 3170, 6623, 11729, 13246, 23458, 33115, 56743, 58645, 66230, 113486, 117290, 283715, 567430, 2099491, 4198982, 10497455, 20994910]

約数ペア:

[(1, 20994910), (2, 10497455), (5, 4198982), (10, 2099491), (37, 567430), (74, 283715), (179, 117290), (185, 113486), (317, 66230), (358, 58645), (370, 56743), (634, 33115), (895, 23458), (1585, 13246), (1790, 11729), (3170, 6623)]