8115220

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{2039}}^1$

素因数の和:2247

約数の個数: 24

約数和(自身を含む): 17136000

約数和(自身を除く): 9020780

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 2039, 3980, 4078, 8156, 10195, 20390, 40780, 405761, 811522, 1623044, 2028805, 4057610, 8115220]

約数ペア:

[(1, 8115220), (2, 4057610), (4, 2028805), (5, 1623044), (10, 811522), (20, 405761), (199, 40780), (398, 20390), (796, 10195), (995, 8156), (1990, 4078), (2039, 3980)]