408291260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1570351}}^1$

素因数の和:1570373

約数の個数: 24

約数和(自身を含む): 923366976

約数和(自身を除く): 515075716

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1570351, 3140702, 6281404, 7851755, 15703510, 20414563, 31407020, 40829126, 81658252, 102072815, 204145630, 408291260]

約数ペア:

[(1, 408291260), (2, 204145630), (4, 102072815), (5, 81658252), (10, 40829126), (13, 31407020), (20, 20414563), (26, 15703510), (52, 7851755), (65, 6281404), (130, 3140702), (260, 1570351)]