80980075

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{757}}^1$

素因数の和:1167

約数の個数: 24

約数和(自身を含む): 109970640

約数和(自身を除く): 28990565

約数列:

[1, 5, 11, 25, 55, 275, 389, 757, 1945, 3785, 4279, 8327, 9725, 18925, 21395, 41635, 106975, 208175, 294473, 1472365, 3239203, 7361825, 16196015, 80980075]

約数ペア:

[(1, 80980075), (5, 16196015), (11, 7361825), (25, 3239203), (55, 1472365), (275, 294473), (389, 208175), (757, 106975), (1945, 41635), (3785, 21395), (4279, 18925), (8327, 9725)]