2004993880

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{173}}^1$

素因数の和:413

約数の個数: 128

約数和(自身を含む): 4788201600

約数和(自身を除く): 2783207720

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 97, 103, 116, 145, 173, 194, 206, 232, 290, 346, 388, 412, 485, 515, 580, 692, 776, 824, 865, 970, 1030, 1160, 1384, 1730, 1940, 2060, 2813, 2987, 3460, 3880, 4120, 5017, 5626, 5974, 6920, 9991, 10034, 11252, 11948, 14065, 14935, 16781, 17819, 19982, 20068, 22504, 23896, 25085, 28130, 29870, 33562, 35638, 39964, 40136, 49955, 50170, 56260, 59740, 67124, 71276, 79928, 83905, 89095, 99910, 100340, 112520, 119480, 134248, 142552, 167810, 178190, 199820, 200680, 289739, 335620, 356380, 399640, 486649, 516751, 579478, 671240, 712760, 973298, 1033502, 1158956, 1448695, 1728443, 1946596, 2067004, 2317912, 2433245, 2583755, 2897390, 3456886, 3893192, 4134008, 4866490, 5167510, 5794780, 6913772, 8642215, 9732980, 10335020, 11589560, 13827544, 17284430, 19465960, 20670040, 34568860, 50124847, 69137720, 100249694, 200499388, 250624235, 400998776, 501248470, 1002496940, 2004993880]

約数ペア:

[(1, 2004993880), (2, 1002496940), (4, 501248470), (5, 400998776), (8, 250624235), (10, 200499388), (20, 100249694), (29, 69137720), (40, 50124847), (58, 34568860), (97, 20670040), (103, 19465960), (116, 17284430), (145, 13827544), (173, 11589560), (194, 10335020), (206, 9732980), (232, 8642215), (290, 6913772), (346, 5794780), (388, 5167510), (412, 4866490), (485, 4134008), (515, 3893192), (580, 3456886), (692, 2897390), (776, 2583755), (824, 2433245), (865, 2317912), (970, 2067004), (1030, 1946596), (1160, 1728443), (1384, 1448695), (1730, 1158956), (1940, 1033502), (2060, 973298), (2813, 712760), (2987, 671240), (3460, 579478), (3880, 516751), (4120, 486649), (5017, 399640), (5626, 356380), (5974, 335620), (6920, 289739), (9991, 200680), (10034, 199820), (11252, 178190), (11948, 167810), (14065, 142552), (14935, 134248), (16781, 119480), (17819, 112520), (19982, 100340), (20068, 99910), (22504, 89095), (23896, 83905), (25085, 79928), (28130, 71276), (29870, 67124), (33562, 59740), (35638, 56260), (39964, 50170), (40136, 49955)]