86263640

素因数分解:

$2^3\times 5^1\times {\mathrm{971}}^1\times {\mathrm{2221}}^1$

素因数の和:3203

約数の個数: 32

約数和(自身を含む): 194380560

約数和(自身を除く): 108116920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 971, 1942, 2221, 3884, 4442, 4855, 7768, 8884, 9710, 11105, 17768, 19420, 22210, 38840, 44420, 88840, 2156591, 4313182, 8626364, 10782955, 17252728, 21565910, 43131820, 86263640]

約数ペア:

[(1, 86263640), (2, 43131820), (4, 21565910), (5, 17252728), (8, 10782955), (10, 8626364), (20, 4313182), (40, 2156591), (971, 88840), (1942, 44420), (2221, 38840), (3884, 22210), (4442, 19420), (4855, 17768), (7768, 11105), (8884, 9710)]