20854010

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67271}}^1$

素因数の和:67309

約数の個数: 16

約数和(自身を含む): 38748672

約数和(自身を除く): 17894662

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 67271, 134542, 336355, 672710, 2085401, 4170802, 10427005, 20854010]

約数ペア:

[(1, 20854010), (2, 10427005), (5, 4170802), (10, 2085401), (31, 672710), (62, 336355), (155, 134542), (310, 67271)]