20278005

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{2083}}^1$

素因数の和:2161

約数の個数: 32

約数和(自身を含む): 36011520

約数和(自身を除く): 15733515

約数列:

[1, 3, 5, 11, 15, 33, 55, 59, 165, 177, 295, 649, 885, 1947, 2083, 3245, 6249, 9735, 10415, 22913, 31245, 68739, 114565, 122897, 343695, 368691, 614485, 1351867, 1843455, 4055601, 6759335, 20278005]

約数ペア:

[(1, 20278005), (3, 6759335), (5, 4055601), (11, 1843455), (15, 1351867), (33, 614485), (55, 368691), (59, 343695), (165, 122897), (177, 114565), (295, 68739), (649, 31245), (885, 22913), (1947, 10415), (2083, 9735), (3245, 6249)]