20554460

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{19391}}^1$

素因数の和:19453

約数の個数: 24

約数和(自身を含む): 43981056

約数和(自身を除く): 23426596

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 19391, 38782, 77564, 96955, 193910, 387820, 1027723, 2055446, 4110892, 5138615, 10277230, 20554460]

約数ペア:

[(1, 20554460), (2, 10277230), (4, 5138615), (5, 4110892), (10, 2055446), (20, 1027723), (53, 387820), (106, 193910), (212, 96955), (265, 77564), (530, 38782), (1060, 19391)]