18390340

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{39979}}^1$

素因数の和:40011

約数の個数: 24

約数和(自身を含む): 40299840

約数和(自身を除く): 21909500

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 39979, 79958, 159916, 199895, 399790, 799580, 919517, 1839034, 3678068, 4597585, 9195170, 18390340]

約数ペア:

[(1, 18390340), (2, 9195170), (4, 4597585), (5, 3678068), (10, 1839034), (20, 919517), (23, 799580), (46, 399790), (92, 199895), (115, 159916), (230, 79958), (460, 39979)]