1781970064

素因数分解:

$2^4\times 7^3\times {\mathrm{61}}^1\times {\mathrm{5323}}^1$

素因数の和:5413

約数の個数: 80

約数和(自身を含む): 4093091200

約数和(自身を除く): 2311121136

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 61, 98, 112, 122, 196, 244, 343, 392, 427, 488, 686, 784, 854, 976, 1372, 1708, 2744, 2989, 3416, 5323, 5488, 5978, 6832, 10646, 11956, 20923, 21292, 23912, 37261, 41846, 42584, 47824, 74522, 83692, 85168, 149044, 167384, 260827, 298088, 324703, 334768, 521654, 596176, 649406, 1043308, 1298812, 1825789, 2086616, 2272921, 2597624, 3651578, 4173232, 4545842, 5195248, 7303156, 9091684, 14606312, 15910447, 18183368, 29212624, 31820894, 36366736, 63641788, 111373129, 127283576, 222746258, 254567152, 445492516, 890985032, 1781970064]

約数ペア:

[(1, 1781970064), (2, 890985032), (4, 445492516), (7, 254567152), (8, 222746258), (14, 127283576), (16, 111373129), (28, 63641788), (49, 36366736), (56, 31820894), (61, 29212624), (98, 18183368), (112, 15910447), (122, 14606312), (196, 9091684), (244, 7303156), (343, 5195248), (392, 4545842), (427, 4173232), (488, 3651578), (686, 2597624), (784, 2272921), (854, 2086616), (976, 1825789), (1372, 1298812), (1708, 1043308), (2744, 649406), (2989, 596176), (3416, 521654), (5323, 334768), (5488, 324703), (5978, 298088), (6832, 260827), (10646, 167384), (11956, 149044), (20923, 85168), (21292, 83692), (23912, 74522), (37261, 47824), (41846, 42584)]