20400516

素因数分解:

$2^2\times 3^2\times {\mathrm{566681}}^1$

素因数の和:566691

約数の個数: 18

約数和(自身を含む): 51568062

約数和(自身を除く): 31167546

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 566681, 1133362, 1700043, 2266724, 3400086, 5100129, 6800172, 10200258, 20400516]

約数ペア:

[(1, 20400516), (2, 10200258), (3, 6800172), (4, 5100129), (6, 3400086), (9, 2266724), (12, 1700043), (18, 1133362), (36, 566681)]