1280433840

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{20599}}^1$

素因数の和:20659

約数の個数: 160

約数和(自身を含む): 4659225600

約数和(自身を除く): 3378791760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 37, 40, 42, 48, 56, 60, 70, 74, 80, 84, 105, 111, 112, 120, 140, 148, 168, 185, 210, 222, 240, 259, 280, 296, 336, 370, 420, 444, 518, 555, 560, 592, 740, 777, 840, 888, 1036, 1110, 1295, 1480, 1554, 1680, 1776, 2072, 2220, 2590, 2960, 3108, 3885, 4144, 4440, 5180, 6216, 7770, 8880, 10360, 12432, 15540, 20599, 20720, 31080, 41198, 61797, 62160, 82396, 102995, 123594, 144193, 164792, 205990, 247188, 288386, 308985, 329584, 411980, 432579, 494376, 576772, 617970, 720965, 762163, 823960, 865158, 988752, 1153544, 1235940, 1441930, 1524326, 1647920, 1730316, 2162895, 2286489, 2307088, 2471880, 2883860, 3048652, 3460632, 3810815, 4325790, 4572978, 4943760, 5335141, 5767720, 6097304, 6921264, 7621630, 8651580, 9145956, 10670282, 11432445, 11535440, 12194608, 15243260, 16005423, 17303160, 18291912, 21340564, 22864890, 26675705, 30486520, 32010846, 34606320, 36583824, 42681128, 45729780, 53351410, 60973040, 64021692, 80027115, 85362256, 91459560, 106702820, 128043384, 160054230, 182919120, 213405640, 256086768, 320108460, 426811280, 640216920, 1280433840]

約数ペア:

[(1, 1280433840), (2, 640216920), (3, 426811280), (4, 320108460), (5, 256086768), (6, 213405640), (7, 182919120), (8, 160054230), (10, 128043384), (12, 106702820), (14, 91459560), (15, 85362256), (16, 80027115), (20, 64021692), (21, 60973040), (24, 53351410), (28, 45729780), (30, 42681128), (35, 36583824), (37, 34606320), (40, 32010846), (42, 30486520), (48, 26675705), (56, 22864890), (60, 21340564), (70, 18291912), (74, 17303160), (80, 16005423), (84, 15243260), (105, 12194608), (111, 11535440), (112, 11432445), (120, 10670282), (140, 9145956), (148, 8651580), (168, 7621630), (185, 6921264), (210, 6097304), (222, 5767720), (240, 5335141), (259, 4943760), (280, 4572978), (296, 4325790), (336, 3810815), (370, 3460632), (420, 3048652), (444, 2883860), (518, 2471880), (555, 2307088), (560, 2286489), (592, 2162895), (740, 1730316), (777, 1647920), (840, 1524326), (888, 1441930), (1036, 1235940), (1110, 1153544), (1295, 988752), (1480, 865158), (1554, 823960), (1680, 762163), (1776, 720965), (2072, 617970), (2220, 576772), (2590, 494376), (2960, 432579), (3108, 411980), (3885, 329584), (4144, 308985), (4440, 288386), (5180, 247188), (6216, 205990), (7770, 164792), (8880, 144193), (10360, 123594), (12432, 102995), (15540, 82396), (20599, 62160), (20720, 61797), (31080, 41198)]