19960147120

素因数分解:

$2^4\times 5^1\times {\mathrm{249501839}}^1$

素因数の和:249501852

約数の個数: 20

約数和(自身を含む): 46407342240

約数和(自身を除く): 26447195120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 249501839, 499003678, 998007356, 1247509195, 1996014712, 2495018390, 3992029424, 4990036780, 9980073560, 19960147120]

約数ペア:

[(1, 19960147120), (2, 9980073560), (4, 4990036780), (5, 3992029424), (8, 2495018390), (10, 1996014712), (16, 1247509195), (20, 998007356), (40, 499003678), (80, 249501839)]