251118512

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{112913}}^1$

素因数の和:113060

約数の個数: 20

約数和(自身を含む): 490046760

約数和(自身を除く): 238928248

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 112913, 225826, 451652, 903304, 1806608, 15694907, 31389814, 62779628, 125559256, 251118512]

約数ペア:

[(1, 251118512), (2, 125559256), (4, 62779628), (8, 31389814), (16, 15694907), (139, 1806608), (278, 903304), (556, 451652), (1112, 225826), (2224, 112913)]