261745965

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149143}}^1$

素因数の和:149170

約数の個数: 32

約数和(自身を含む): 501123840

約数和(自身を除く): 239377875

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 149143, 447429, 745715, 1342287, 1938859, 2237145, 4026861, 5816577, 6711435, 9694295, 17449731, 20134305, 29082885, 52349193, 87248655, 261745965]

約数ペア:

[(1, 261745965), (3, 87248655), (5, 52349193), (9, 29082885), (13, 20134305), (15, 17449731), (27, 9694295), (39, 6711435), (45, 5816577), (65, 4026861), (117, 2237145), (135, 1938859), (195, 1342287), (351, 745715), (585, 447429), (1755, 149143)]