25254515

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^3\times {\mathrm{19}}^1$

素因数の和:85

約数の個数: 48

約数和(自身を含む): 37984800

約数和(自身を除く): 12730285

約数列:

[1, 5, 11, 13, 19, 55, 65, 95, 121, 143, 169, 209, 247, 605, 715, 845, 1045, 1235, 1573, 1859, 2197, 2299, 2717, 3211, 7865, 9295, 10985, 11495, 13585, 16055, 20449, 24167, 29887, 35321, 41743, 102245, 120835, 149435, 176605, 208715, 265837, 388531, 459173, 1329185, 1942655, 2295865, 5050903, 25254515]

約数ペア:

[(1, 25254515), (5, 5050903), (11, 2295865), (13, 1942655), (19, 1329185), (55, 459173), (65, 388531), (95, 265837), (121, 208715), (143, 176605), (169, 149435), (209, 120835), (247, 102245), (605, 41743), (715, 35321), (845, 29887), (1045, 24167), (1235, 20449), (1573, 16055), (1859, 13585), (2197, 11495), (2299, 10985), (2717, 9295), (3211, 7865)]