11121280

素因数分解:

$2^7\times 5^1\times {\mathrm{17377}}^1$

素因数の和:17396

約数の個数: 32

約数和(自身を含む): 26588340

約数和(自身を除く): 15467060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 17377, 34754, 69508, 86885, 139016, 173770, 278032, 347540, 556064, 695080, 1112128, 1390160, 2224256, 2780320, 5560640, 11121280]

約数ペア:

[(1, 11121280), (2, 5560640), (4, 2780320), (5, 2224256), (8, 1390160), (10, 1112128), (16, 695080), (20, 556064), (32, 347540), (40, 278032), (64, 173770), (80, 139016), (128, 86885), (160, 69508), (320, 34754), (640, 17377)]