20206960

素因数分解:

$2^4\times 5^1\times {\mathrm{229}}^1\times {\mathrm{1103}}^1$

素因数の和:1345

約数の個数: 40

約数和(自身を含む): 47229120

約数和(自身を除く): 27022160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 229, 458, 916, 1103, 1145, 1832, 2206, 2290, 3664, 4412, 4580, 5515, 8824, 9160, 11030, 17648, 18320, 22060, 44120, 88240, 252587, 505174, 1010348, 1262935, 2020696, 2525870, 4041392, 5051740, 10103480, 20206960]

約数ペア:

[(1, 20206960), (2, 10103480), (4, 5051740), (5, 4041392), (8, 2525870), (10, 2020696), (16, 1262935), (20, 1010348), (40, 505174), (80, 252587), (229, 88240), (458, 44120), (916, 22060), (1103, 18320), (1145, 17648), (1832, 11030), (2206, 9160), (2290, 8824), (3664, 5515), (4412, 4580)]