86239240

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{4391}}^1$

素因数の和:4893

約数の個数: 32

約数和(自身を含む): 194477760

約数和(自身を除く): 108238520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3928, 4391, 4910, 8782, 9820, 17564, 19640, 21955, 35128, 43910, 87820, 175640, 2155981, 4311962, 8623924, 10779905, 17247848, 21559810, 43119620, 86239240]

約数ペア:

[(1, 86239240), (2, 43119620), (4, 21559810), (5, 17247848), (8, 10779905), (10, 8623924), (20, 4311962), (40, 2155981), (491, 175640), (982, 87820), (1964, 43910), (2455, 35128), (3928, 21955), (4391, 19640), (4910, 17564), (8782, 9820)]