20291300

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{6997}}^1$

素因数の和:7040

約数の個数: 36

約数和(自身を含む): 45556980

約数和(自身を除く): 25265680

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 145, 290, 580, 725, 1450, 2900, 6997, 13994, 27988, 34985, 69970, 139940, 174925, 202913, 349850, 405826, 699700, 811652, 1014565, 2029130, 4058260, 5072825, 10145650, 20291300]

約数ペア:

[(1, 20291300), (2, 10145650), (4, 5072825), (5, 4058260), (10, 2029130), (20, 1014565), (25, 811652), (29, 699700), (50, 405826), (58, 349850), (100, 202913), (116, 174925), (145, 139940), (290, 69970), (580, 34985), (725, 27988), (1450, 13994), (2900, 6997)]