80813200

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{15541}}^1$

素因数の和:15572

約数の個数: 60

約数和(自身を含む): 209102068

約数和(自身を除く): 128288868

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 5200, 15541, 31082, 62164, 77705, 124328, 155410, 202033, 248656, 310820, 388525, 404066, 621640, 777050, 808132, 1010165, 1243280, 1554100, 1616264, 2020330, 3108200, 3232528, 4040660, 5050825, 6216400, 8081320, 10101650, 16162640, 20203300, 40406600, 80813200]

約数ペア:

[(1, 80813200), (2, 40406600), (4, 20203300), (5, 16162640), (8, 10101650), (10, 8081320), (13, 6216400), (16, 5050825), (20, 4040660), (25, 3232528), (26, 3108200), (40, 2020330), (50, 1616264), (52, 1554100), (65, 1243280), (80, 1010165), (100, 808132), (104, 777050), (130, 621640), (200, 404066), (208, 388525), (260, 310820), (325, 248656), (400, 202033), (520, 155410), (650, 124328), (1040, 77705), (1300, 62164), (2600, 31082), (5200, 15541)]