1988209840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{50411}}^1$

素因数の和:50470

約数の個数: 80

約数和(自身を含む): 5063381280

約数和(自身を除く): 3075171440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 34, 40, 58, 68, 80, 85, 116, 136, 145, 170, 232, 272, 290, 340, 464, 493, 580, 680, 986, 1160, 1360, 1972, 2320, 2465, 3944, 4930, 7888, 9860, 19720, 39440, 50411, 100822, 201644, 252055, 403288, 504110, 806576, 856987, 1008220, 1461919, 1713974, 2016440, 2923838, 3427948, 4032880, 4284935, 5847676, 6855896, 7309595, 8569870, 11695352, 13711792, 14619190, 17139740, 23390704, 24852623, 29238380, 34279480, 49705246, 58476760, 68558960, 99410492, 116953520, 124263115, 198820984, 248526230, 397641968, 497052460, 994104920, 1988209840]

約数ペア:

[(1, 1988209840), (2, 994104920), (4, 497052460), (5, 397641968), (8, 248526230), (10, 198820984), (16, 124263115), (17, 116953520), (20, 99410492), (29, 68558960), (34, 58476760), (40, 49705246), (58, 34279480), (68, 29238380), (80, 24852623), (85, 23390704), (116, 17139740), (136, 14619190), (145, 13711792), (170, 11695352), (232, 8569870), (272, 7309595), (290, 6855896), (340, 5847676), (464, 4284935), (493, 4032880), (580, 3427948), (680, 2923838), (986, 2016440), (1160, 1713974), (1360, 1461919), (1972, 1008220), (2320, 856987), (2465, 806576), (3944, 504110), (4930, 403288), (7888, 252055), (9860, 201644), (19720, 100822), (39440, 50411)]