196403960

素因数分解:

$2^3\times 5^1\times {\mathrm{4910099}}^1$

素因数の和:4910110

約数の個数: 16

約数和(自身を含む): 441909000

約数和(自身を除く): 245505040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4910099, 9820198, 19640396, 24550495, 39280792, 49100990, 98201980, 196403960]

約数ペア:

[(1, 196403960), (2, 98201980), (4, 49100990), (5, 39280792), (8, 24550495), (10, 19640396), (20, 9820198), (40, 4910099)]