20172901880

素因数分解:

$2^3\times 5^1\times {\mathrm{504322547}}^1$

素因数の和:504322558

約数の個数: 16

約数和(自身を含む): 45389029320

約数和(自身を除く): 25216127440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504322547, 1008645094, 2017290188, 2521612735, 4034580376, 5043225470, 10086450940, 20172901880]

約数ペア:

[(1, 20172901880), (2, 10086450940), (4, 5043225470), (5, 4034580376), (8, 2521612735), (10, 2017290188), (20, 1008645094), (40, 504322547)]