18874145

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{4003}}^1$

素因数の和:4072

約数の個数: 16

約数和(自身を含む): 24216192

約数和(自身を除く): 5342047

約数列:

[1, 5, 23, 41, 115, 205, 943, 4003, 4715, 20015, 92069, 164123, 460345, 820615, 3774829, 18874145]

約数ペア:

[(1, 18874145), (5, 3774829), (23, 820615), (41, 460345), (115, 164123), (205, 92069), (943, 20015), (4003, 4715)]