20335896680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{15877}}^1$

素因数の和:16011

約数の個数: 128

約数和(自身を含む): 51856277760

約数和(自身を除く): 31520381080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 41, 44, 55, 71, 82, 88, 110, 142, 164, 205, 220, 284, 328, 355, 410, 440, 451, 568, 710, 781, 820, 902, 1420, 1562, 1640, 1804, 2255, 2840, 2911, 3124, 3608, 3905, 4510, 5822, 6248, 7810, 9020, 11644, 14555, 15620, 15877, 18040, 23288, 29110, 31240, 31754, 32021, 58220, 63508, 64042, 79385, 116440, 127016, 128084, 158770, 160105, 174647, 256168, 317540, 320210, 349294, 635080, 640420, 650957, 698588, 873235, 1127267, 1280840, 1301914, 1397176, 1746470, 2254534, 2603828, 3254785, 3492940, 4509068, 5207656, 5636335, 6509570, 6985880, 7160527, 9018136, 11272670, 12399937, 13019140, 14321054, 22545340, 24799874, 26038280, 28642108, 35802635, 45090680, 46217947, 49599748, 57284216, 61999685, 71605270, 92435894, 99199496, 123999370, 143210540, 184871788, 231089735, 247998740, 286421080, 369743576, 462179470, 495997480, 508397417, 924358940, 1016794834, 1848717880, 2033589668, 2541987085, 4067179336, 5083974170, 10167948340, 20335896680]

約数ペア:

[(1, 20335896680), (2, 10167948340), (4, 5083974170), (5, 4067179336), (8, 2541987085), (10, 2033589668), (11, 1848717880), (20, 1016794834), (22, 924358940), (40, 508397417), (41, 495997480), (44, 462179470), (55, 369743576), (71, 286421080), (82, 247998740), (88, 231089735), (110, 184871788), (142, 143210540), (164, 123999370), (205, 99199496), (220, 92435894), (284, 71605270), (328, 61999685), (355, 57284216), (410, 49599748), (440, 46217947), (451, 45090680), (568, 35802635), (710, 28642108), (781, 26038280), (820, 24799874), (902, 22545340), (1420, 14321054), (1562, 13019140), (1640, 12399937), (1804, 11272670), (2255, 9018136), (2840, 7160527), (2911, 6985880), (3124, 6509570), (3608, 5636335), (3905, 5207656), (4510, 4509068), (5822, 3492940), (6248, 3254785), (7810, 2603828), (9020, 2254534), (11644, 1746470), (14555, 1397176), (15620, 1301914), (15877, 1280840), (18040, 1127267), (23288, 873235), (29110, 698588), (31240, 650957), (31754, 640420), (32021, 635080), (58220, 349294), (63508, 320210), (64042, 317540), (79385, 256168), (116440, 174647), (127016, 160105), (128084, 158770)]