81129296

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{36479}}^1$

素因数の和:36626

約数の個数: 20

約数和(自身を含む): 158323200

約数和(自身を除く): 77193904

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 36479, 72958, 145916, 291832, 583664, 5070581, 10141162, 20282324, 40564648, 81129296]

約数ペア:

[(1, 81129296), (2, 40564648), (4, 20282324), (8, 10141162), (16, 5070581), (139, 583664), (278, 291832), (556, 145916), (1112, 72958), (2224, 36479)]