87131132

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{180023}}^1$

素因数の和:180049

約数の個数: 18

約数和(自身を含む): 167602344

約数和(自身を除く): 80471212

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 180023, 360046, 720092, 1980253, 3960506, 7921012, 21782783, 43565566, 87131132]

約数ペア:

[(1, 87131132), (2, 43565566), (4, 21782783), (11, 7921012), (22, 3960506), (44, 1980253), (121, 720092), (242, 360046), (484, 180023)]