647354920

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{67153}}^1$

素因数の和:67405

約数の個数: 32

約数和(自身を含む): 1462614120

約数和(自身を除く): 815259200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1928, 2410, 4820, 9640, 67153, 134306, 268612, 335765, 537224, 671530, 1343060, 2686120, 16183873, 32367746, 64735492, 80919365, 129470984, 161838730, 323677460, 647354920]

約数ペア:

[(1, 647354920), (2, 323677460), (4, 161838730), (5, 129470984), (8, 80919365), (10, 64735492), (20, 32367746), (40, 16183873), (241, 2686120), (482, 1343060), (964, 671530), (1205, 537224), (1928, 335765), (2410, 268612), (4820, 134306), (9640, 67153)]