2561921570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{881}}^1\times {\mathrm{22369}}^1$

素因数の和:23270

約数の個数: 32

約数和(自身を含む): 4972045680

約数和(自身を除く): 2410124110

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 881, 1762, 4405, 8810, 11453, 22369, 22906, 44738, 57265, 111845, 114530, 223690, 290797, 581594, 1453985, 2907970, 19707089, 39414178, 98535445, 197070890, 256192157, 512384314, 1280960785, 2561921570]

約数ペア:

[(1, 2561921570), (2, 1280960785), (5, 512384314), (10, 256192157), (13, 197070890), (26, 98535445), (65, 39414178), (130, 19707089), (881, 2907970), (1762, 1453985), (4405, 581594), (8810, 290797), (11453, 223690), (22369, 114530), (22906, 111845), (44738, 57265)]