402479240

素因数分解:

$2^3\times 5^1\times {\mathrm{10061981}}^1$

素因数の和:10061992

約数の個数: 16

約数和(自身を含む): 905578380

約数和(自身を除く): 503099140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 10061981, 20123962, 40247924, 50309905, 80495848, 100619810, 201239620, 402479240]

約数ペア:

[(1, 402479240), (2, 201239620), (4, 100619810), (5, 80495848), (8, 50309905), (10, 40247924), (20, 20123962), (40, 10061981)]