199903960

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{172331}}^1$

素因数の和:172371

約数の個数: 32

約数和(自身を含む): 465296400

約数和(自身を除く): 265392440

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 172331, 344662, 689324, 861655, 1378648, 1723310, 3446620, 4997599, 6893240, 9995198, 19990396, 24987995, 39980792, 49975990, 99951980, 199903960]

約数ペア:

[(1, 199903960), (2, 99951980), (4, 49975990), (5, 39980792), (8, 24987995), (10, 19990396), (20, 9995198), (29, 6893240), (40, 4997599), (58, 3446620), (116, 1723310), (145, 1378648), (232, 861655), (290, 689324), (580, 344662), (1160, 172331)]