318824350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{490499}}^1$

素因数の和:490524

約数の個数: 24

約数和(自身を含む): 638631000

約数和(自身を除く): 319806650

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 490499, 980998, 2452495, 4904990, 6376487, 12262475, 12752974, 24524950, 31882435, 63764870, 159412175, 318824350]

約数ペア:

[(1, 318824350), (2, 159412175), (5, 63764870), (10, 31882435), (13, 24524950), (25, 12752974), (26, 12262475), (50, 6376487), (65, 4904990), (130, 2452495), (325, 980998), (650, 490499)]