20878150

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{21977}}^1$

素因数の和:22008

約数の個数: 24

約数和(自身を含む): 40879080

約数和(自身を除く): 20000930

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 190, 475, 950, 21977, 43954, 109885, 219770, 417563, 549425, 835126, 1098850, 2087815, 4175630, 10439075, 20878150]

約数ペア:

[(1, 20878150), (2, 10439075), (5, 4175630), (10, 2087815), (19, 1098850), (25, 835126), (38, 549425), (50, 417563), (95, 219770), (190, 109885), (475, 43954), (950, 21977)]