440242270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{10889}}^1$

素因数の和:11220

約数の個数: 32

約数和(自身を含む): 856215360

約数和(自身を除く): 415973090

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 311, 622, 1555, 3110, 4043, 8086, 10889, 20215, 21778, 40430, 54445, 108890, 141557, 283114, 707785, 1415570, 3386479, 6772958, 16932395, 33864790, 44024227, 88048454, 220121135, 440242270]

約数ペア:

[(1, 440242270), (2, 220121135), (5, 88048454), (10, 44024227), (13, 33864790), (26, 16932395), (65, 6772958), (130, 3386479), (311, 1415570), (622, 707785), (1555, 283114), (3110, 141557), (4043, 108890), (8086, 54445), (10889, 40430), (20215, 21778)]