19646140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{42709}}^1$

素因数の和:42741

約数の個数: 24

約数和(自身を含む): 43051680

約数和(自身を除く): 23405540

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 42709, 85418, 170836, 213545, 427090, 854180, 982307, 1964614, 3929228, 4911535, 9823070, 19646140]

約数ペア:

[(1, 19646140), (2, 9823070), (4, 4911535), (5, 3929228), (10, 1964614), (20, 982307), (23, 854180), (46, 427090), (92, 213545), (115, 170836), (230, 85418), (460, 42709)]