20668810

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{677}}^1$

素因数の和:798

約数の個数: 32

約数和(自身を含む): 38662272

約数和(自身を除く): 17993462

約数列:

[1, 2, 5, 10, 43, 71, 86, 142, 215, 355, 430, 677, 710, 1354, 3053, 3385, 6106, 6770, 15265, 29111, 30530, 48067, 58222, 96134, 145555, 240335, 291110, 480670, 2066881, 4133762, 10334405, 20668810]

約数ペア:

[(1, 20668810), (2, 10334405), (5, 4133762), (10, 2066881), (43, 480670), (71, 291110), (86, 240335), (142, 145555), (215, 96134), (355, 58222), (430, 48067), (677, 30530), (710, 29111), (1354, 15265), (3053, 6770), (3385, 6106)]