816660460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:213

約数の個数: 216

約数和(自身を含む): 2246644512

約数和(自身を除く): 1429984052

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 71, 77, 97, 98, 110, 121, 140, 142, 154, 194, 196, 220, 242, 245, 284, 308, 355, 385, 388, 484, 485, 490, 497, 539, 605, 679, 710, 770, 781, 847, 970, 980, 994, 1067, 1078, 1210, 1358, 1420, 1540, 1562, 1694, 1940, 1988, 2134, 2156, 2420, 2485, 2695, 2716, 3124, 3388, 3395, 3479, 3905, 4235, 4268, 4753, 4970, 5335, 5390, 5467, 5929, 6790, 6887, 6958, 7469, 7810, 8470, 8591, 9506, 9940, 10670, 10780, 10934, 11737, 11858, 13580, 13774, 13916, 14938, 15620, 16940, 17182, 17395, 19012, 21340, 21868, 23474, 23716, 23765, 27335, 27548, 29645, 29876, 34364, 34435, 34790, 37345, 38269, 42955, 46948, 47530, 48209, 52283, 54670, 58685, 59290, 60137, 68870, 69580, 74690, 75757, 76538, 82159, 85910, 95060, 96418, 104566, 109340, 117370, 118580, 120274, 137740, 149380, 151514, 153076, 164318, 171820, 191345, 192836, 209132, 234740, 240548, 241045, 261415, 300685, 303028, 328636, 337463, 378785, 382690, 410795, 420959, 482090, 522830, 530299, 575113, 601370, 674926, 757570, 765380, 821590, 833327, 841918, 964180, 1045660, 1060598, 1150226, 1202740, 1349852, 1515140, 1643180, 1666654, 1683836, 1687315, 2104795, 2121196, 2300452, 2651495, 2875565, 3333308, 3374630, 3712093, 4166635, 4209590, 5302990, 5751130, 5833289, 6749260, 7424186, 8333270, 8419180, 10605980, 11502260, 11666578, 14848372, 16666540, 18560465, 23333156, 29166445, 37120930, 40833023, 58332890, 74241860, 81666046, 116665780, 163332092, 204165115, 408330230, 816660460]

約数ペア:

[(1, 816660460), (2, 408330230), (4, 204165115), (5, 163332092), (7, 116665780), (10, 81666046), (11, 74241860), (14, 58332890), (20, 40833023), (22, 37120930), (28, 29166445), (35, 23333156), (44, 18560465), (49, 16666540), (55, 14848372), (70, 11666578), (71, 11502260), (77, 10605980), (97, 8419180), (98, 8333270), (110, 7424186), (121, 6749260), (140, 5833289), (142, 5751130), (154, 5302990), (194, 4209590), (196, 4166635), (220, 3712093), (242, 3374630), (245, 3333308), (284, 2875565), (308, 2651495), (355, 2300452), (385, 2121196), (388, 2104795), (484, 1687315), (485, 1683836), (490, 1666654), (497, 1643180), (539, 1515140), (605, 1349852), (679, 1202740), (710, 1150226), (770, 1060598), (781, 1045660), (847, 964180), (970, 841918), (980, 833327), (994, 821590), (1067, 765380), (1078, 757570), (1210, 674926), (1358, 601370), (1420, 575113), (1540, 530299), (1562, 522830), (1694, 482090), (1940, 420959), (1988, 410795), (2134, 382690), (2156, 378785), (2420, 337463), (2485, 328636), (2695, 303028), (2716, 300685), (3124, 261415), (3388, 241045), (3395, 240548), (3479, 234740), (3905, 209132), (4235, 192836), (4268, 191345), (4753, 171820), (4970, 164318), (5335, 153076), (5390, 151514), (5467, 149380), (5929, 137740), (6790, 120274), (6887, 118580), (6958, 117370), (7469, 109340), (7810, 104566), (8470, 96418), (8591, 95060), (9506, 85910), (9940, 82159), (10670, 76538), (10780, 75757), (10934, 74690), (11737, 69580), (11858, 68870), (13580, 60137), (13774, 59290), (13916, 58685), (14938, 54670), (15620, 52283), (16940, 48209), (17182, 47530), (17395, 46948), (19012, 42955), (21340, 38269), (21868, 37345), (23474, 34790), (23716, 34435), (23765, 34364), (27335, 29876), (27548, 29645)]