87181965

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2099}}^1$

素因数の和:2194

約数の個数: 48

約数和(自身を含む): 165110400

約数和(自身を除く): 77928435

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 71, 117, 195, 213, 355, 585, 639, 923, 1065, 2099, 2769, 3195, 4615, 6297, 8307, 10495, 13845, 18891, 27287, 31485, 41535, 81861, 94455, 136435, 149029, 245583, 409305, 447087, 745145, 1227915, 1341261, 1937377, 2235435, 5812131, 6706305, 9686885, 17436393, 29060655, 87181965]

約数ペア:

[(1, 87181965), (3, 29060655), (5, 17436393), (9, 9686885), (13, 6706305), (15, 5812131), (39, 2235435), (45, 1937377), (65, 1341261), (71, 1227915), (117, 745145), (195, 447087), (213, 409305), (355, 245583), (585, 149029), (639, 136435), (923, 94455), (1065, 81861), (2099, 41535), (2769, 31485), (3195, 27287), (4615, 18891), (6297, 13845), (8307, 10495)]