256475388

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{1644073}}^1$

素因数の和:1644093

約数の個数: 24

約数和(自身を含む): 644477008

約数和(自身を除く): 388001620

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 1644073, 3288146, 4932219, 6576292, 9864438, 19728876, 21372949, 42745898, 64118847, 85491796, 128237694, 256475388]

約数ペア:

[(1, 256475388), (2, 128237694), (3, 85491796), (4, 64118847), (6, 42745898), (12, 21372949), (13, 19728876), (26, 9864438), (39, 6576292), (52, 4932219), (78, 3288146), (156, 1644073)]