12931640

素因数分解:

$2^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{2141}}^1$

素因数の和:2303

約数の個数: 32

約数和(自身を含む): 29302560

約数和(自身を除く): 16370920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 151, 302, 604, 755, 1208, 1510, 2141, 3020, 4282, 6040, 8564, 10705, 17128, 21410, 42820, 85640, 323291, 646582, 1293164, 1616455, 2586328, 3232910, 6465820, 12931640]

約数ペア:

[(1, 12931640), (2, 6465820), (4, 3232910), (5, 2586328), (8, 1616455), (10, 1293164), (20, 646582), (40, 323291), (151, 85640), (302, 42820), (604, 21410), (755, 17128), (1208, 10705), (1510, 8564), (2141, 6040), (3020, 4282)]