20189246980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{144208907}}^1$

素因数の和:144208923

約数の個数: 24

約数和(自身を含む): 48454193088

約数和(自身を除く): 28264946108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 144208907, 288417814, 576835628, 721044535, 1009462349, 1442089070, 2018924698, 2884178140, 4037849396, 5047311745, 10094623490, 20189246980]

約数ペア:

[(1, 20189246980), (2, 10094623490), (4, 5047311745), (5, 4037849396), (7, 2884178140), (10, 2018924698), (14, 1442089070), (20, 1009462349), (28, 721044535), (35, 576835628), (70, 288417814), (140, 144208907)]