18967580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{55787}}^1$

素因数の和:55813

約数の個数: 24

約数和(自身を含む): 42175728

約数和(自身を除く): 23208148

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 55787, 111574, 223148, 278935, 557870, 948379, 1115740, 1896758, 3793516, 4741895, 9483790, 18967580]

約数ペア:

[(1, 18967580), (2, 9483790), (4, 4741895), (5, 3793516), (10, 1896758), (17, 1115740), (20, 948379), (34, 557870), (68, 278935), (85, 223148), (170, 111574), (340, 55787)]