20698049240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1\times {\mathrm{2411}}^1$

素因数の和:2721

約数の個数: 128

約数和(自身を含む): 51578208000

約数和(自身を除く): 30880158760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 109, 110, 179, 218, 220, 358, 436, 440, 545, 716, 872, 895, 1090, 1199, 1432, 1790, 1969, 2180, 2398, 2411, 3580, 3938, 4360, 4796, 4822, 5995, 7160, 7876, 9592, 9644, 9845, 11990, 12055, 15752, 19288, 19511, 19690, 23980, 24110, 26521, 39022, 39380, 47960, 48220, 53042, 78044, 78760, 96440, 97555, 106084, 132605, 156088, 195110, 212168, 214621, 262799, 265210, 390220, 429242, 431569, 525598, 530420, 780440, 858484, 863138, 1051196, 1060840, 1073105, 1313995, 1716968, 1726276, 2102392, 2146210, 2157845, 2627990, 2890789, 3452552, 4292420, 4315690, 4747259, 5255980, 5781578, 8584840, 8631380, 9494518, 10511960, 11563156, 14453945, 17262760, 18989036, 23126312, 23736295, 28907890, 37978072, 47041021, 47472590, 57815780, 94082042, 94945180, 115631560, 188164084, 189890360, 235205105, 376328168, 470410210, 517451231, 940820420, 1034902462, 1881640840, 2069804924, 2587256155, 4139609848, 5174512310, 10349024620, 20698049240]

約数ペア:

[(1, 20698049240), (2, 10349024620), (4, 5174512310), (5, 4139609848), (8, 2587256155), (10, 2069804924), (11, 1881640840), (20, 1034902462), (22, 940820420), (40, 517451231), (44, 470410210), (55, 376328168), (88, 235205105), (109, 189890360), (110, 188164084), (179, 115631560), (218, 94945180), (220, 94082042), (358, 57815780), (436, 47472590), (440, 47041021), (545, 37978072), (716, 28907890), (872, 23736295), (895, 23126312), (1090, 18989036), (1199, 17262760), (1432, 14453945), (1790, 11563156), (1969, 10511960), (2180, 9494518), (2398, 8631380), (2411, 8584840), (3580, 5781578), (3938, 5255980), (4360, 4747259), (4796, 4315690), (4822, 4292420), (5995, 3452552), (7160, 2890789), (7876, 2627990), (9592, 2157845), (9644, 2146210), (9845, 2102392), (11990, 1726276), (12055, 1716968), (15752, 1313995), (19288, 1073105), (19511, 1060840), (19690, 1051196), (23980, 863138), (24110, 858484), (26521, 780440), (39022, 530420), (39380, 525598), (47960, 431569), (48220, 429242), (53042, 390220), (78044, 265210), (78760, 262799), (96440, 214621), (97555, 212168), (106084, 195110), (132605, 156088)]