18240340

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{4583}}^1$

素因数の和:4791

約数の個数: 24

約数和(自身を含む): 38505600

約数和(自身を除く): 20265260

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 4583, 9166, 18332, 22915, 45830, 91660, 912017, 1824034, 3648068, 4560085, 9120170, 18240340]

約数ペア:

[(1, 18240340), (2, 9120170), (4, 4560085), (5, 3648068), (10, 1824034), (20, 912017), (199, 91660), (398, 45830), (796, 22915), (995, 18332), (1990, 9166), (3980, 4583)]