81586100

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{11491}}^1$

素因数の和:11576

約数の個数: 36

約数和(自身を含む): 179551008

約数和(自身を除く): 97964908

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 142, 284, 355, 710, 1420, 1775, 3550, 7100, 11491, 22982, 45964, 57455, 114910, 229820, 287275, 574550, 815861, 1149100, 1631722, 3263444, 4079305, 8158610, 16317220, 20396525, 40793050, 81586100]

約数ペア:

[(1, 81586100), (2, 40793050), (4, 20396525), (5, 16317220), (10, 8158610), (20, 4079305), (25, 3263444), (50, 1631722), (71, 1149100), (100, 815861), (142, 574550), (284, 287275), (355, 229820), (710, 114910), (1420, 57455), (1775, 45964), (3550, 22982), (7100, 11491)]