20124550

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{13879}}^1$

素因数の和:13920

約数の個数: 24

約数和(自身を含む): 38725200

約数和(自身を除く): 18600650

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 145, 290, 725, 1450, 13879, 27758, 69395, 138790, 346975, 402491, 693950, 804982, 2012455, 4024910, 10062275, 20124550]

約数ペア:

[(1, 20124550), (2, 10062275), (5, 4024910), (10, 2012455), (25, 804982), (29, 693950), (50, 402491), (58, 346975), (145, 138790), (290, 69395), (725, 27758), (1450, 13879)]