20496980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{146407}}^1$

素因数の和:146423

約数の個数: 24

約数和(自身を含む): 49193088

約数和(自身を除く): 28696108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 146407, 292814, 585628, 732035, 1024849, 1464070, 2049698, 2928140, 4099396, 5124245, 10248490, 20496980]

約数ペア:

[(1, 20496980), (2, 10248490), (4, 5124245), (5, 4099396), (7, 2928140), (10, 2049698), (14, 1464070), (20, 1024849), (28, 732035), (35, 585628), (70, 292814), (140, 146407)]