257630412

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{1651477}}^1$

素因数の和:1651497

約数の個数: 24

約数和(自身を含む): 647379376

約数和(自身を除く): 389748964

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 1651477, 3302954, 4954431, 6605908, 9908862, 19817724, 21469201, 42938402, 64407603, 85876804, 128815206, 257630412]

約数ペア:

[(1, 257630412), (2, 128815206), (3, 85876804), (4, 64407603), (6, 42938402), (12, 21469201), (13, 19817724), (26, 9908862), (39, 6605908), (52, 4954431), (78, 3302954), (156, 1651477)]