18210320

素因数分解:

$2^4\times 5^1\times {\mathrm{227629}}^1$

素因数の和:227642

約数の個数: 20

約数和(自身を含む): 42339180

約数和(自身を除く): 24128860

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227629, 455258, 910516, 1138145, 1821032, 2276290, 3642064, 4552580, 9105160, 18210320]

約数ペア:

[(1, 18210320), (2, 9105160), (4, 4552580), (5, 3642064), (8, 2276290), (10, 1821032), (16, 1138145), (20, 910516), (40, 455258), (80, 227629)]