40815920

素因数分解:

$2^4\times 5^1\times {\mathrm{510199}}^1$

素因数の和:510212

約数の個数: 20

約数和(自身を含む): 94897200

約数和(自身を除く): 54081280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 510199, 1020398, 2040796, 2550995, 4081592, 5101990, 8163184, 10203980, 20407960, 40815920]

約数ペア:

[(1, 40815920), (2, 20407960), (4, 10203980), (5, 8163184), (8, 5101990), (10, 4081592), (16, 2550995), (20, 2040796), (40, 1020398), (80, 510199)]