1625264

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{647}}^1$

素因数の和:812

約数の個数: 20

約数和(自身を含む): 3173904

約数和(自身を除く): 1548640

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 647, 1256, 1294, 2512, 2588, 5176, 10352, 101579, 203158, 406316, 812632, 1625264]

約数ペア:

[(1, 1625264), (2, 812632), (4, 406316), (8, 203158), (16, 101579), (157, 10352), (314, 5176), (628, 2588), (647, 2512), (1256, 1294)]