20047905

素因数分解:

$3^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{839}}^1$

素因数の和:915

約数の個数: 40

約数和(自身を含む): 36590400

約数和(自身を除く): 16542495

約数列:

[1, 3, 5, 9, 15, 27, 45, 59, 81, 135, 177, 295, 405, 531, 839, 885, 1593, 2517, 2655, 4195, 4779, 7551, 7965, 12585, 22653, 23895, 37755, 49501, 67959, 113265, 148503, 247505, 339795, 445509, 742515, 1336527, 2227545, 4009581, 6682635, 20047905]

約数ペア:

[(1, 20047905), (3, 6682635), (5, 4009581), (9, 2227545), (15, 1336527), (27, 742515), (45, 445509), (59, 339795), (81, 247505), (135, 148503), (177, 113265), (295, 67959), (405, 49501), (531, 37755), (839, 23895), (885, 22653), (1593, 12585), (2517, 7965), (2655, 7551), (4195, 4779)]