19764976

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:350

約数の個数: 80

約数和(自身を含む): 48711168

約数和(自身を除く): 28946192

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 61, 77, 88, 112, 122, 154, 176, 244, 263, 308, 427, 488, 526, 616, 671, 854, 976, 1052, 1232, 1342, 1708, 1841, 2104, 2684, 2893, 3416, 3682, 4208, 4697, 5368, 5786, 6832, 7364, 9394, 10736, 11572, 14728, 16043, 18788, 20251, 23144, 29456, 32086, 37576, 40502, 46288, 64172, 75152, 81004, 112301, 128344, 162008, 176473, 224602, 256688, 324016, 352946, 449204, 705892, 898408, 1235311, 1411784, 1796816, 2470622, 2823568, 4941244, 9882488, 19764976]

約数ペア:

[(1, 19764976), (2, 9882488), (4, 4941244), (7, 2823568), (8, 2470622), (11, 1796816), (14, 1411784), (16, 1235311), (22, 898408), (28, 705892), (44, 449204), (56, 352946), (61, 324016), (77, 256688), (88, 224602), (112, 176473), (122, 162008), (154, 128344), (176, 112301), (244, 81004), (263, 75152), (308, 64172), (427, 46288), (488, 40502), (526, 37576), (616, 32086), (671, 29456), (854, 23144), (976, 20251), (1052, 18788), (1232, 16043), (1342, 14728), (1708, 11572), (1841, 10736), (2104, 9394), (2684, 7364), (2893, 6832), (3416, 5786), (3682, 5368), (4208, 4697)]