261268240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{10111}}^1$

素因数の和:10160

約数の個数: 80

約数和(自身を含む): 677099520

約数和(自身を除く): 415831280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 68, 76, 80, 85, 95, 136, 152, 170, 190, 272, 304, 323, 340, 380, 646, 680, 760, 1292, 1360, 1520, 1615, 2584, 3230, 5168, 6460, 10111, 12920, 20222, 25840, 40444, 50555, 80888, 101110, 161776, 171887, 192109, 202220, 343774, 384218, 404440, 687548, 768436, 808880, 859435, 960545, 1375096, 1536872, 1718870, 1921090, 2750192, 3073744, 3265853, 3437740, 3842180, 6531706, 6875480, 7684360, 13063412, 13750960, 15368720, 16329265, 26126824, 32658530, 52253648, 65317060, 130634120, 261268240]

約数ペア:

[(1, 261268240), (2, 130634120), (4, 65317060), (5, 52253648), (8, 32658530), (10, 26126824), (16, 16329265), (17, 15368720), (19, 13750960), (20, 13063412), (34, 7684360), (38, 6875480), (40, 6531706), (68, 3842180), (76, 3437740), (80, 3265853), (85, 3073744), (95, 2750192), (136, 1921090), (152, 1718870), (170, 1536872), (190, 1375096), (272, 960545), (304, 859435), (323, 808880), (340, 768436), (380, 687548), (646, 404440), (680, 384218), (760, 343774), (1292, 202220), (1360, 192109), (1520, 171887), (1615, 161776), (2584, 101110), (3230, 80888), (5168, 50555), (6460, 40444), (10111, 25840), (12920, 20222)]