326360

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:251

約数の個数: 32

約数和(自身を含む): 756000

約数和(自身を除く): 429640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 199, 205, 328, 398, 410, 796, 820, 995, 1592, 1640, 1990, 3980, 7960, 8159, 16318, 32636, 40795, 65272, 81590, 163180, 326360]

約数ペア:

[(1, 326360), (2, 163180), (4, 81590), (5, 65272), (8, 40795), (10, 32636), (20, 16318), (40, 8159), (41, 7960), (82, 3980), (164, 1990), (199, 1640), (205, 1592), (328, 995), (398, 820), (410, 796)]