261452360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1$

素因数の和:295

約数の個数: 128

約数和(自身を含む): 661893120

約数和(自身を除く): 400440760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 107, 127, 130, 148, 185, 214, 254, 260, 296, 370, 428, 481, 508, 520, 535, 635, 740, 856, 962, 1016, 1070, 1270, 1391, 1480, 1651, 1924, 2140, 2405, 2540, 2782, 3302, 3848, 3959, 4280, 4699, 4810, 5080, 5564, 6604, 6955, 7918, 8255, 9398, 9620, 11128, 13208, 13589, 13910, 15836, 16510, 18796, 19240, 19795, 23495, 27178, 27820, 31672, 33020, 37592, 39590, 46990, 51467, 54356, 55640, 61087, 66040, 67945, 79180, 93980, 102934, 108712, 122174, 135890, 158360, 176657, 187960, 205868, 244348, 257335, 271780, 305435, 353314, 411736, 488696, 502793, 514670, 543560, 610870, 706628, 883285, 1005586, 1029340, 1221740, 1413256, 1766570, 2011172, 2058680, 2443480, 2513965, 3533140, 4022344, 5027930, 6536309, 7066280, 10055860, 13072618, 20111720, 26145236, 32681545, 52290472, 65363090, 130726180, 261452360]

約数ペア:

[(1, 261452360), (2, 130726180), (4, 65363090), (5, 52290472), (8, 32681545), (10, 26145236), (13, 20111720), (20, 13072618), (26, 10055860), (37, 7066280), (40, 6536309), (52, 5027930), (65, 4022344), (74, 3533140), (104, 2513965), (107, 2443480), (127, 2058680), (130, 2011172), (148, 1766570), (185, 1413256), (214, 1221740), (254, 1029340), (260, 1005586), (296, 883285), (370, 706628), (428, 610870), (481, 543560), (508, 514670), (520, 502793), (535, 488696), (635, 411736), (740, 353314), (856, 305435), (962, 271780), (1016, 257335), (1070, 244348), (1270, 205868), (1391, 187960), (1480, 176657), (1651, 158360), (1924, 135890), (2140, 122174), (2405, 108712), (2540, 102934), (2782, 93980), (3302, 79180), (3848, 67945), (3959, 66040), (4280, 61087), (4699, 55640), (4810, 54356), (5080, 51467), (5564, 46990), (6604, 39590), (6955, 37592), (7918, 33020), (8255, 31672), (9398, 27820), (9620, 27178), (11128, 23495), (13208, 19795), (13589, 19240), (13910, 18796), (15836, 16510)]