20218378920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{193}}^1\times {\mathrm{30103}}^1$

素因数の和:30339

約数の個数: 128

約数和(自身を含む): 63073900800

約数和(自身を除く): 42855521880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 58, 60, 87, 116, 120, 145, 174, 193, 232, 290, 348, 386, 435, 579, 580, 696, 772, 870, 965, 1158, 1160, 1544, 1740, 1930, 2316, 2895, 3480, 3860, 4632, 5597, 5790, 7720, 11194, 11580, 16791, 22388, 23160, 27985, 30103, 33582, 44776, 55970, 60206, 67164, 83955, 90309, 111940, 120412, 134328, 150515, 167910, 180618, 223880, 240824, 301030, 335820, 361236, 451545, 602060, 671640, 722472, 872987, 903090, 1204120, 1745974, 1806180, 2618961, 3491948, 3612360, 4364935, 5237922, 5809879, 6983896, 8729870, 10475844, 11619758, 13094805, 17429637, 17459740, 20951688, 23239516, 26189610, 29049395, 34859274, 34919480, 46479032, 52379220, 58098790, 69718548, 87148185, 104758440, 116197580, 139437096, 168486491, 174296370, 232395160, 336972982, 348592740, 505459473, 673945964, 697185480, 842432455, 1010918946, 1347891928, 1684864910, 2021837892, 2527297365, 3369729820, 4043675784, 5054594730, 6739459640, 10109189460, 20218378920]

約数ペア:

[(1, 20218378920), (2, 10109189460), (3, 6739459640), (4, 5054594730), (5, 4043675784), (6, 3369729820), (8, 2527297365), (10, 2021837892), (12, 1684864910), (15, 1347891928), (20, 1010918946), (24, 842432455), (29, 697185480), (30, 673945964), (40, 505459473), (58, 348592740), (60, 336972982), (87, 232395160), (116, 174296370), (120, 168486491), (145, 139437096), (174, 116197580), (193, 104758440), (232, 87148185), (290, 69718548), (348, 58098790), (386, 52379220), (435, 46479032), (579, 34919480), (580, 34859274), (696, 29049395), (772, 26189610), (870, 23239516), (965, 20951688), (1158, 17459740), (1160, 17429637), (1544, 13094805), (1740, 11619758), (1930, 10475844), (2316, 8729870), (2895, 6983896), (3480, 5809879), (3860, 5237922), (4632, 4364935), (5597, 3612360), (5790, 3491948), (7720, 2618961), (11194, 1806180), (11580, 1745974), (16791, 1204120), (22388, 903090), (23160, 872987), (27985, 722472), (30103, 671640), (33582, 602060), (44776, 451545), (55970, 361236), (60206, 335820), (67164, 301030), (83955, 240824), (90309, 223880), (111940, 180618), (120412, 167910), (134328, 150515)]