40412980

素因数分解:

$2^2\times 5^1\times {\mathrm{991}}^1\times {\mathrm{2039}}^1$

素因数の和:3039

約数の個数: 24

約数和(自身を含む): 84994560

約数和(自身を除く): 44581580

約数列:

[1, 2, 4, 5, 10, 20, 991, 1982, 2039, 3964, 4078, 4955, 8156, 9910, 10195, 19820, 20390, 40780, 2020649, 4041298, 8082596, 10103245, 20206490, 40412980]

約数ペア:

[(1, 40412980), (2, 20206490), (4, 10103245), (5, 8082596), (10, 4041298), (20, 2020649), (991, 40780), (1982, 20390), (2039, 19820), (3964, 10195), (4078, 9910), (4955, 8156)]