19622320

素因数分解:

$2^4\times 5^1\times {\mathrm{245279}}^1$

素因数の和:245292

約数の個数: 20

約数和(自身を含む): 45622080

約数和(自身を除く): 25999760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 245279, 490558, 981116, 1226395, 1962232, 2452790, 3924464, 4905580, 9811160, 19622320]

約数ペア:

[(1, 19622320), (2, 9811160), (4, 4905580), (5, 3924464), (8, 2452790), (10, 1962232), (16, 1226395), (20, 981116), (40, 490558), (80, 245279)]