80761820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{130261}}^1$

素因数の和:130301

約数の個数: 24

約数和(自身を含む): 175072128

約数和(自身を除く): 94310308

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 130261, 260522, 521044, 651305, 1302610, 2605220, 4038091, 8076182, 16152364, 20190455, 40380910, 80761820]

約数ペア:

[(1, 80761820), (2, 40380910), (4, 20190455), (5, 16152364), (10, 8076182), (20, 4038091), (31, 2605220), (62, 1302610), (124, 651305), (155, 521044), (310, 260522), (620, 130261)]