13144280

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5387}}^1$

素因数の和:5459

約数の個数: 32

約数和(自身を含む): 30065040

約数和(自身を除く): 16920760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 5387, 10774, 21548, 26935, 43096, 53870, 107740, 215480, 328607, 657214, 1314428, 1643035, 2628856, 3286070, 6572140, 13144280]

約数ペア:

[(1, 13144280), (2, 6572140), (4, 3286070), (5, 2628856), (8, 1643035), (10, 1314428), (20, 657214), (40, 328607), (61, 215480), (122, 107740), (244, 53870), (305, 43096), (488, 26935), (610, 21548), (1220, 10774), (2440, 5387)]