39949820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{68879}}^1$

素因数の和:68917

約数の個数: 24

約数和(自身を含む): 86788800

約数和(自身を除く): 46838980

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 68879, 137758, 275516, 344395, 688790, 1377580, 1997491, 3994982, 7989964, 9987455, 19974910, 39949820]

約数ペア:

[(1, 39949820), (2, 19974910), (4, 9987455), (5, 7989964), (10, 3994982), (20, 1997491), (29, 1377580), (58, 688790), (116, 344395), (145, 275516), (290, 137758), (580, 68879)]