261042320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1367}}^1$

素因数の和:1429

約数の個数: 160

約数和(自身を含む): 781664256

約数和(自身を除く): 520621936

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 31, 35, 40, 44, 55, 56, 62, 70, 77, 80, 88, 110, 112, 124, 140, 154, 155, 176, 217, 220, 248, 280, 308, 310, 341, 385, 434, 440, 496, 560, 616, 620, 682, 770, 868, 880, 1085, 1232, 1240, 1364, 1367, 1540, 1705, 1736, 2170, 2387, 2480, 2728, 2734, 3080, 3410, 3472, 4340, 4774, 5456, 5468, 6160, 6820, 6835, 8680, 9548, 9569, 10936, 11935, 13640, 13670, 15037, 17360, 19096, 19138, 21872, 23870, 27280, 27340, 30074, 38192, 38276, 42377, 47740, 47845, 54680, 60148, 75185, 76552, 84754, 95480, 95690, 105259, 109360, 120296, 150370, 153104, 169508, 190960, 191380, 210518, 211885, 240592, 296639, 300740, 339016, 382760, 421036, 423770, 466147, 526295, 593278, 601480, 678032, 765520, 842072, 847540, 932294, 1052590, 1186556, 1202960, 1483195, 1684144, 1695080, 1864588, 2105180, 2330735, 2373112, 2966390, 3263029, 3390160, 3729176, 4210360, 4661470, 4746224, 5932780, 6526058, 7458352, 8420720, 9322940, 11865560, 13052116, 16315145, 18645880, 23731120, 26104232, 32630290, 37291760, 52208464, 65260580, 130521160, 261042320]

約数ペア:

[(1, 261042320), (2, 130521160), (4, 65260580), (5, 52208464), (7, 37291760), (8, 32630290), (10, 26104232), (11, 23731120), (14, 18645880), (16, 16315145), (20, 13052116), (22, 11865560), (28, 9322940), (31, 8420720), (35, 7458352), (40, 6526058), (44, 5932780), (55, 4746224), (56, 4661470), (62, 4210360), (70, 3729176), (77, 3390160), (80, 3263029), (88, 2966390), (110, 2373112), (112, 2330735), (124, 2105180), (140, 1864588), (154, 1695080), (155, 1684144), (176, 1483195), (217, 1202960), (220, 1186556), (248, 1052590), (280, 932294), (308, 847540), (310, 842072), (341, 765520), (385, 678032), (434, 601480), (440, 593278), (496, 526295), (560, 466147), (616, 423770), (620, 421036), (682, 382760), (770, 339016), (868, 300740), (880, 296639), (1085, 240592), (1232, 211885), (1240, 210518), (1364, 191380), (1367, 190960), (1540, 169508), (1705, 153104), (1736, 150370), (2170, 120296), (2387, 109360), (2480, 105259), (2728, 95690), (2734, 95480), (3080, 84754), (3410, 76552), (3472, 75185), (4340, 60148), (4774, 54680), (5456, 47845), (5468, 47740), (6160, 42377), (6820, 38276), (6835, 38192), (8680, 30074), (9548, 27340), (9569, 27280), (10936, 23870), (11935, 21872), (13640, 19138), (13670, 19096), (15037, 17360)]