19495240

素因数分解:

$2^3\times 5^1\times {\mathrm{487381}}^1$

素因数の和:487392

約数の個数: 16

約数和(自身を含む): 43864380

約数和(自身を除く): 24369140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487381, 974762, 1949524, 2436905, 3899048, 4873810, 9747620, 19495240]

約数ペア:

[(1, 19495240), (2, 9747620), (4, 4873810), (5, 3899048), (8, 2436905), (10, 1949524), (20, 974762), (40, 487381)]