618888920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:373

約数の個数: 128

約数和(自身を含む): 1546776000

約数和(自身を除く): 927887080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 61, 65, 104, 109, 122, 130, 179, 218, 244, 260, 305, 358, 436, 488, 520, 545, 610, 716, 793, 872, 895, 1090, 1220, 1417, 1432, 1586, 1790, 2180, 2327, 2440, 2834, 3172, 3580, 3965, 4360, 4654, 5668, 6344, 6649, 7085, 7160, 7930, 9308, 10919, 11336, 11635, 13298, 14170, 15860, 18616, 19511, 21838, 23270, 26596, 28340, 31720, 33245, 39022, 43676, 46540, 53192, 54595, 56680, 66490, 78044, 86437, 87352, 93080, 97555, 109190, 132980, 141947, 156088, 172874, 195110, 218380, 253643, 265960, 283894, 345748, 390220, 432185, 436760, 507286, 567788, 691496, 709735, 780440, 864370, 1014572, 1135576, 1190171, 1268215, 1419470, 1728740, 2029144, 2380342, 2536430, 2838940, 3457480, 4760684, 5072860, 5677880, 5950855, 9521368, 10145720, 11901710, 15472223, 23803420, 30944446, 47606840, 61888892, 77361115, 123777784, 154722230, 309444460, 618888920]

約数ペア:

[(1, 618888920), (2, 309444460), (4, 154722230), (5, 123777784), (8, 77361115), (10, 61888892), (13, 47606840), (20, 30944446), (26, 23803420), (40, 15472223), (52, 11901710), (61, 10145720), (65, 9521368), (104, 5950855), (109, 5677880), (122, 5072860), (130, 4760684), (179, 3457480), (218, 2838940), (244, 2536430), (260, 2380342), (305, 2029144), (358, 1728740), (436, 1419470), (488, 1268215), (520, 1190171), (545, 1135576), (610, 1014572), (716, 864370), (793, 780440), (872, 709735), (895, 691496), (1090, 567788), (1220, 507286), (1417, 436760), (1432, 432185), (1586, 390220), (1790, 345748), (2180, 283894), (2327, 265960), (2440, 253643), (2834, 218380), (3172, 195110), (3580, 172874), (3965, 156088), (4360, 141947), (4654, 132980), (5668, 109190), (6344, 97555), (6649, 93080), (7085, 87352), (7160, 86437), (7930, 78044), (9308, 66490), (10919, 56680), (11336, 54595), (11635, 53192), (13298, 46540), (14170, 43676), (15860, 39022), (18616, 33245), (19511, 31720), (21838, 28340), (23270, 26596)]