245655111

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{1999}}^1$

素因数の和:2175

約数の個数: 32

約数和(自身を含む): 370944000

約数和(自身を除く): 125288889

約数列:

[1, 3, 13, 23, 39, 69, 137, 299, 411, 897, 1781, 1999, 3151, 5343, 5997, 9453, 25987, 40963, 45977, 77961, 122889, 137931, 273863, 597701, 821589, 1793103, 3560219, 6298849, 10680657, 18896547, 81885037, 245655111]

約数ペア:

[(1, 245655111), (3, 81885037), (13, 18896547), (23, 10680657), (39, 6298849), (69, 3560219), (137, 1793103), (299, 821589), (411, 597701), (897, 273863), (1781, 137931), (1999, 122889), (3151, 77961), (5343, 45977), (5997, 40963), (9453, 25987)]