18560620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71387}}^1$

素因数の和:71409

約数の個数: 24

約数和(自身を含む): 41976144

約数和(自身を除く): 23415524

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 71387, 142774, 285548, 356935, 713870, 928031, 1427740, 1856062, 3712124, 4640155, 9280310, 18560620]

約数ペア:

[(1, 18560620), (2, 9280310), (4, 4640155), (5, 3712124), (10, 1856062), (13, 1427740), (20, 928031), (26, 713870), (52, 356935), (65, 285548), (130, 142774), (260, 71387)]