20196470020

素因数分解:

$2^2\times 5^1\times {\mathrm{18049}}^1\times {\mathrm{55949}}^1$

素因数の和:74007

約数の個数: 24

約数和(自身を含む): 42415695000

約数和(自身を除く): 22219224980

約数列:

[1, 2, 4, 5, 10, 20, 18049, 36098, 55949, 72196, 90245, 111898, 180490, 223796, 279745, 360980, 559490, 1118980, 1009823501, 2019647002, 4039294004, 5049117505, 10098235010, 20196470020]

約数ペア:

[(1, 20196470020), (2, 10098235010), (4, 5049117505), (5, 4039294004), (10, 2019647002), (20, 1009823501), (18049, 1118980), (36098, 559490), (55949, 360980), (72196, 279745), (90245, 223796), (111898, 180490)]