3255640

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{409}}^1$

素因数の和:619

約数の個数: 32

約数和(自身を含む): 7380000

約数和(自身を除く): 4124360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 409, 796, 818, 995, 1592, 1636, 1990, 2045, 3272, 3980, 4090, 7960, 8180, 16360, 81391, 162782, 325564, 406955, 651128, 813910, 1627820, 3255640]

約数ペア:

[(1, 3255640), (2, 1627820), (4, 813910), (5, 651128), (8, 406955), (10, 325564), (20, 162782), (40, 81391), (199, 16360), (398, 8180), (409, 7960), (796, 4090), (818, 3980), (995, 3272), (1592, 2045), (1636, 1990)]