389675260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1498751}}^1$

素因数の和:1498773

約数の個数: 24

約数和(自身を含む): 881266176

約数和(自身を除く): 491590916

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1498751, 2997502, 5995004, 7493755, 14987510, 19483763, 29975020, 38967526, 77935052, 97418815, 194837630, 389675260]

約数ペア:

[(1, 389675260), (2, 194837630), (4, 97418815), (5, 77935052), (10, 38967526), (13, 29975020), (20, 19483763), (26, 14987510), (52, 7493755), (65, 5995004), (130, 2997502), (260, 1498751)]