19981550

素因数分解:

$2^1\times 5^2\times {\mathrm{167}}^1\times {\mathrm{2393}}^1$

素因数の和:2572

約数の個数: 24

約数和(自身を含む): 37403856

約数和(自身を除く): 17422306

約数列:

[1, 2, 5, 10, 25, 50, 167, 334, 835, 1670, 2393, 4175, 4786, 8350, 11965, 23930, 59825, 119650, 399631, 799262, 1998155, 3996310, 9990775, 19981550]

約数ペア:

[(1, 19981550), (2, 9990775), (5, 3996310), (10, 1998155), (25, 799262), (50, 399631), (167, 119650), (334, 59825), (835, 23930), (1670, 11965), (2393, 8350), (4175, 4786)]