25118665

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^2$

素因数の和:134

約数の個数: 48

約数和(自身を含む): 38162880

約数和(自身を除く): 13044215

約数列:

[1, 5, 11, 13, 19, 43, 55, 65, 95, 143, 209, 215, 247, 473, 559, 715, 817, 1045, 1235, 1849, 2365, 2717, 2795, 4085, 6149, 8987, 9245, 10621, 13585, 20339, 24037, 30745, 35131, 44935, 53105, 101695, 116831, 120185, 175655, 264407, 386441, 456703, 584155, 1322035, 1932205, 2283515, 5023733, 25118665]

約数ペア:

[(1, 25118665), (5, 5023733), (11, 2283515), (13, 1932205), (19, 1322035), (43, 584155), (55, 456703), (65, 386441), (95, 264407), (143, 175655), (209, 120185), (215, 116831), (247, 101695), (473, 53105), (559, 44935), (715, 35131), (817, 30745), (1045, 24037), (1235, 20339), (1849, 13585), (2365, 10621), (2717, 9245), (2795, 8987), (4085, 6149)]