20807876280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{337}}^1\times {\mathrm{7247}}^1$

素因数の和:7669

約数の個数: 128

約数和(自身を含む): 63499438080

約数和(自身を除く): 42691561800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 337, 355, 426, 568, 674, 710, 852, 1011, 1065, 1348, 1420, 1685, 1704, 2022, 2130, 2696, 2840, 3370, 4044, 4260, 5055, 6740, 7247, 8088, 8520, 10110, 13480, 14494, 20220, 21741, 23927, 28988, 36235, 40440, 43482, 47854, 57976, 71781, 72470, 86964, 95708, 108705, 119635, 143562, 144940, 173928, 191416, 217410, 239270, 287124, 289880, 358905, 434820, 478540, 514537, 574248, 717810, 869640, 957080, 1029074, 1435620, 1543611, 2058148, 2442239, 2572685, 2871240, 3087222, 4116296, 4884478, 5145370, 6174444, 7326717, 7718055, 9768956, 10290740, 12211195, 12348888, 14653434, 15436110, 19537912, 20581480, 24422390, 29306868, 30872220, 36633585, 48844780, 58613736, 61744440, 73267170, 97689560, 146534340, 173398969, 293068680, 346797938, 520196907, 693595876, 866994845, 1040393814, 1387191752, 1733989690, 2080787628, 2600984535, 3467979380, 4161575256, 5201969070, 6935958760, 10403938140, 20807876280]

約数ペア:

[(1, 20807876280), (2, 10403938140), (3, 6935958760), (4, 5201969070), (5, 4161575256), (6, 3467979380), (8, 2600984535), (10, 2080787628), (12, 1733989690), (15, 1387191752), (20, 1040393814), (24, 866994845), (30, 693595876), (40, 520196907), (60, 346797938), (71, 293068680), (120, 173398969), (142, 146534340), (213, 97689560), (284, 73267170), (337, 61744440), (355, 58613736), (426, 48844780), (568, 36633585), (674, 30872220), (710, 29306868), (852, 24422390), (1011, 20581480), (1065, 19537912), (1348, 15436110), (1420, 14653434), (1685, 12348888), (1704, 12211195), (2022, 10290740), (2130, 9768956), (2696, 7718055), (2840, 7326717), (3370, 6174444), (4044, 5145370), (4260, 4884478), (5055, 4116296), (6740, 3087222), (7247, 2871240), (8088, 2572685), (8520, 2442239), (10110, 2058148), (13480, 1543611), (14494, 1435620), (20220, 1029074), (21741, 957080), (23927, 869640), (28988, 717810), (36235, 574248), (40440, 514537), (43482, 478540), (47854, 434820), (57976, 358905), (71781, 289880), (72470, 287124), (86964, 239270), (95708, 217410), (108705, 191416), (119635, 173928), (143562, 144940)]