388655240

素因数分解:

$2^3\times 5^1\times {\mathrm{9716381}}^1$

素因数の和:9716392

約数の個数: 16

約数和(自身を含む): 874474380

約数和(自身を除く): 485819140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9716381, 19432762, 38865524, 48581905, 77731048, 97163810, 194327620, 388655240]

約数ペア:

[(1, 388655240), (2, 194327620), (4, 97163810), (5, 77731048), (8, 48581905), (10, 38865524), (20, 19432762), (40, 9716381)]