80951780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2341}}^1$

素因数の和:2389

約数の個数: 96

約数和(自身を含む): 220335360

約数和(自身を除く): 139383580

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 26, 28, 35, 38, 52, 65, 70, 76, 91, 95, 130, 133, 140, 182, 190, 247, 260, 266, 364, 380, 455, 494, 532, 665, 910, 988, 1235, 1330, 1729, 1820, 2341, 2470, 2660, 3458, 4682, 4940, 6916, 8645, 9364, 11705, 16387, 17290, 23410, 30433, 32774, 34580, 44479, 46820, 60866, 65548, 81935, 88958, 121732, 152165, 163870, 177916, 213031, 222395, 304330, 311353, 327740, 426062, 444790, 578227, 608660, 622706, 852124, 889580, 1065155, 1156454, 1245412, 1556765, 2130310, 2312908, 2891135, 3113530, 4047589, 4260620, 5782270, 6227060, 8095178, 11564540, 16190356, 20237945, 40475890, 80951780]

約数ペア:

[(1, 80951780), (2, 40475890), (4, 20237945), (5, 16190356), (7, 11564540), (10, 8095178), (13, 6227060), (14, 5782270), (19, 4260620), (20, 4047589), (26, 3113530), (28, 2891135), (35, 2312908), (38, 2130310), (52, 1556765), (65, 1245412), (70, 1156454), (76, 1065155), (91, 889580), (95, 852124), (130, 622706), (133, 608660), (140, 578227), (182, 444790), (190, 426062), (247, 327740), (260, 311353), (266, 304330), (364, 222395), (380, 213031), (455, 177916), (494, 163870), (532, 152165), (665, 121732), (910, 88958), (988, 81935), (1235, 65548), (1330, 60866), (1729, 46820), (1820, 44479), (2341, 34580), (2470, 32774), (2660, 30433), (3458, 23410), (4682, 17290), (4940, 16387), (6916, 11705), (8645, 9364)]