20623856

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:210

約数の個数: 80

約数和(自身を含む): 47327328

約数和(自身を除く): 26703472

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 61, 68, 88, 113, 122, 136, 176, 187, 226, 244, 272, 374, 452, 488, 671, 748, 904, 976, 1037, 1243, 1342, 1496, 1808, 1921, 2074, 2486, 2684, 2992, 3842, 4148, 4972, 5368, 6893, 7684, 8296, 9944, 10736, 11407, 13786, 15368, 16592, 19888, 21131, 22814, 27572, 30736, 42262, 45628, 55144, 75823, 84524, 91256, 110288, 117181, 151646, 169048, 182512, 234362, 303292, 338096, 468724, 606584, 937448, 1213168, 1288991, 1874896, 2577982, 5155964, 10311928, 20623856]

約数ペア:

[(1, 20623856), (2, 10311928), (4, 5155964), (8, 2577982), (11, 1874896), (16, 1288991), (17, 1213168), (22, 937448), (34, 606584), (44, 468724), (61, 338096), (68, 303292), (88, 234362), (113, 182512), (122, 169048), (136, 151646), (176, 117181), (187, 110288), (226, 91256), (244, 84524), (272, 75823), (374, 55144), (452, 45628), (488, 42262), (671, 30736), (748, 27572), (904, 22814), (976, 21131), (1037, 19888), (1243, 16592), (1342, 15368), (1496, 13786), (1808, 11407), (1921, 10736), (2074, 9944), (2486, 8296), (2684, 7684), (2992, 6893), (3842, 5368), (4148, 4972)]