31215640

素因数分解:

$2^3\times 5^1\times {\mathrm{167}}^1\times {\mathrm{4673}}^1$

素因数の和:4851

約数の個数: 32

約数和(自身を含む): 70670880

約数和(自身を除く): 39455240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 167, 334, 668, 835, 1336, 1670, 3340, 4673, 6680, 9346, 18692, 23365, 37384, 46730, 93460, 186920, 780391, 1560782, 3121564, 3901955, 6243128, 7803910, 15607820, 31215640]

約数ペア:

[(1, 31215640), (2, 15607820), (4, 7803910), (5, 6243128), (8, 3901955), (10, 3121564), (20, 1560782), (40, 780391), (167, 186920), (334, 93460), (668, 46730), (835, 37384), (1336, 23365), (1670, 18692), (3340, 9346), (4673, 6680)]