128521305

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{259639}}^1$

素因数の和:259661

約数の個数: 24

約数和(自身を含む): 243023040

約数和(自身を除く): 114501735

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 259639, 778917, 1298195, 2336751, 2856029, 3894585, 8568087, 11683755, 14280145, 25704261, 42840435, 128521305]

約数ペア:

[(1, 128521305), (3, 42840435), (5, 25704261), (9, 14280145), (11, 11683755), (15, 8568087), (33, 3894585), (45, 2856029), (55, 2336751), (99, 1298195), (165, 778917), (495, 259639)]