19994020

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{9343}}^1$

素因数の和:9459

約数の個数: 24

約数和(自身を含む): 42384384

約数和(自身を除く): 22390364

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 9343, 18686, 37372, 46715, 93430, 186860, 999701, 1999402, 3998804, 4998505, 9997010, 19994020]

約数ペア:

[(1, 19994020), (2, 9997010), (4, 4998505), (5, 3998804), (10, 1999402), (20, 999701), (107, 186860), (214, 93430), (428, 46715), (535, 37372), (1070, 18686), (2140, 9343)]