8155460

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{997}}^1$

素因数の和:1415

約数の個数: 24

約数和(自身を含む): 17185560

約数和(自身を除く): 9030100

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 997, 1636, 1994, 2045, 3988, 4090, 4985, 8180, 9970, 19940, 407773, 815546, 1631092, 2038865, 4077730, 8155460]

約数ペア:

[(1, 8155460), (2, 4077730), (4, 2038865), (5, 1631092), (10, 815546), (20, 407773), (409, 19940), (818, 9970), (997, 8180), (1636, 4985), (1994, 4090), (2045, 3988)]