20173890890

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{69565141}}^1$

素因数の和:69565177

約数の個数: 16

約数和(自身を含む): 37565176680

約数和(自身を除く): 17391285790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 69565141, 139130282, 347825705, 695651410, 2017389089, 4034778178, 10086945445, 20173890890]

約数ペア:

[(1, 20173890890), (2, 10086945445), (5, 4034778178), (10, 2017389089), (29, 695651410), (58, 347825705), (145, 139130282), (290, 69565141)]