282580

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:279

約数の個数: 24

約数和(自身を含む): 604800

約数和(自身を除く): 322220

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 199, 284, 355, 398, 710, 796, 995, 1420, 1990, 3980, 14129, 28258, 56516, 70645, 141290, 282580]

約数ペア:

[(1, 282580), (2, 141290), (4, 70645), (5, 56516), (10, 28258), (20, 14129), (71, 3980), (142, 1990), (199, 1420), (284, 995), (355, 796), (398, 710)]