86823640

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{21491}}^1$

素因数の和:21603

約数の個数: 32

約数和(自身を含む): 197296560

約数和(自身を除く): 110472920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 21491, 42982, 85964, 107455, 171928, 214910, 429820, 859640, 2170591, 4341182, 8682364, 10852955, 17364728, 21705910, 43411820, 86823640]

約数ペア:

[(1, 86823640), (2, 43411820), (4, 21705910), (5, 17364728), (8, 10852955), (10, 8682364), (20, 4341182), (40, 2170591), (101, 859640), (202, 429820), (404, 214910), (505, 171928), (808, 107455), (1010, 85964), (2020, 42982), (4040, 21491)]