208528515

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{257}}^1$

素因数の和:373

約数の個数: 96

約数和(自身を含む): 416969280

約数和(自身を除く): 208440765

約数列:

[1, 3, 5, 9, 13, 15, 19, 39, 45, 57, 65, 73, 95, 117, 171, 195, 219, 247, 257, 285, 365, 585, 657, 741, 771, 855, 949, 1095, 1235, 1285, 1387, 2223, 2313, 2847, 3285, 3341, 3705, 3855, 4161, 4745, 4883, 6935, 8541, 10023, 11115, 11565, 12483, 14235, 14649, 16705, 18031, 18761, 20805, 24415, 30069, 42705, 43947, 50115, 54093, 56283, 62415, 63479, 73245, 90155, 93805, 150345, 162279, 168849, 190437, 219735, 243893, 270465, 281415, 317395, 356459, 571311, 731679, 811395, 844245, 952185, 1069377, 1219465, 1782295, 2195037, 2856555, 3208131, 3658395, 4633967, 5346885, 10975185, 13901901, 16040655, 23169835, 41705703, 69509505, 208528515]

約数ペア:

[(1, 208528515), (3, 69509505), (5, 41705703), (9, 23169835), (13, 16040655), (15, 13901901), (19, 10975185), (39, 5346885), (45, 4633967), (57, 3658395), (65, 3208131), (73, 2856555), (95, 2195037), (117, 1782295), (171, 1219465), (195, 1069377), (219, 952185), (247, 844245), (257, 811395), (285, 731679), (365, 571311), (585, 356459), (657, 317395), (741, 281415), (771, 270465), (855, 243893), (949, 219735), (1095, 190437), (1235, 168849), (1285, 162279), (1387, 150345), (2223, 93805), (2313, 90155), (2847, 73245), (3285, 63479), (3341, 62415), (3705, 56283), (3855, 54093), (4161, 50115), (4745, 43947), (4883, 42705), (6935, 30069), (8541, 24415), (10023, 20805), (11115, 18761), (11565, 18031), (12483, 16705), (14235, 14649)]