391314280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1397551}}^1$

素因数の和:1397569

約数の個数: 32

約数和(自身を含む): 1006237440

約数和(自身を除く): 614923160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1397551, 2795102, 5590204, 6987755, 9782857, 11180408, 13975510, 19565714, 27951020, 39131428, 48914285, 55902040, 78262856, 97828570, 195657140, 391314280]

約数ペア:

[(1, 391314280), (2, 195657140), (4, 97828570), (5, 78262856), (7, 55902040), (8, 48914285), (10, 39131428), (14, 27951020), (20, 19565714), (28, 13975510), (35, 11180408), (40, 9782857), (56, 6987755), (70, 5590204), (140, 2795102), (280, 1397551)]