20108935

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2749}}^1$

素因数の和:2791

約数の個数: 32

約数和(自身を含む): 31680000

約数和(自身を除く): 11571065

約数列:

[1, 5, 7, 11, 19, 35, 55, 77, 95, 133, 209, 385, 665, 1045, 1463, 2749, 7315, 13745, 19243, 30239, 52231, 96215, 151195, 211673, 261155, 365617, 574541, 1058365, 1828085, 2872705, 4021787, 20108935]

約数ペア:

[(1, 20108935), (5, 4021787), (7, 2872705), (11, 1828085), (19, 1058365), (35, 574541), (55, 365617), (77, 261155), (95, 211673), (133, 151195), (209, 96215), (385, 52231), (665, 30239), (1045, 19243), (1463, 13745), (2749, 7315)]