26821820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43261}}^1$

素因数の和:43301

約数の個数: 24

約数和(自身を含む): 58144128

約数和(自身を除く): 31322308

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 43261, 86522, 173044, 216305, 432610, 865220, 1341091, 2682182, 5364364, 6705455, 13410910, 26821820]

約数ペア:

[(1, 26821820), (2, 13410910), (4, 6705455), (5, 5364364), (10, 2682182), (20, 1341091), (31, 865220), (62, 432610), (124, 216305), (155, 173044), (310, 86522), (620, 43261)]