87421960

素因数分解:

$2^3\times 5^1\times {\mathrm{977}}^1\times {\mathrm{2237}}^1$

素因数の和:3225

約数の個数: 32

約数和(自身を含む): 196988760

約数和(自身を除く): 109566800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 977, 1954, 2237, 3908, 4474, 4885, 7816, 8948, 9770, 11185, 17896, 19540, 22370, 39080, 44740, 89480, 2185549, 4371098, 8742196, 10927745, 17484392, 21855490, 43710980, 87421960]

約数ペア:

[(1, 87421960), (2, 43710980), (4, 21855490), (5, 17484392), (8, 10927745), (10, 8742196), (20, 4371098), (40, 2185549), (977, 89480), (1954, 44740), (2237, 39080), (3908, 22370), (4474, 19540), (4885, 17896), (7816, 11185), (8948, 9770)]