87615980

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{10711}}^1$

素因数の和:11129

約数の個数: 24

約数和(自身を含む): 184460640

約数和(自身を除く): 96844660

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8180, 10711, 21422, 42844, 53555, 107110, 214220, 4380799, 8761598, 17523196, 21903995, 43807990, 87615980]

約数ペア:

[(1, 87615980), (2, 43807990), (4, 21903995), (5, 17523196), (10, 8761598), (20, 4380799), (409, 214220), (818, 107110), (1636, 53555), (2045, 42844), (4090, 21422), (8180, 10711)]