87285880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{198377}}^1$

素因数の和:198399

約数の個数: 32

約数和(自身を含む): 214248240

約数和(自身を除く): 126962360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 198377, 396754, 793508, 991885, 1587016, 1983770, 2182147, 3967540, 4364294, 7935080, 8728588, 10910735, 17457176, 21821470, 43642940, 87285880]

約数ペア:

[(1, 87285880), (2, 43642940), (4, 21821470), (5, 17457176), (8, 10910735), (10, 8728588), (11, 7935080), (20, 4364294), (22, 3967540), (40, 2182147), (44, 1983770), (55, 1587016), (88, 991885), (110, 793508), (220, 396754), (440, 198377)]