20307056

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{311}}^1$

素因数の和:390

約数の個数: 80

約数和(自身を含む): 50139648

約数和(自身を除く): 29832592

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 53, 56, 77, 88, 106, 112, 154, 176, 212, 308, 311, 371, 424, 583, 616, 622, 742, 848, 1166, 1232, 1244, 1484, 2177, 2332, 2488, 2968, 3421, 4081, 4354, 4664, 4976, 5936, 6842, 8162, 8708, 9328, 13684, 16324, 16483, 17416, 23947, 27368, 32648, 32966, 34832, 47894, 54736, 65296, 65932, 95788, 115381, 131864, 181313, 191576, 230762, 263728, 362626, 383152, 461524, 725252, 923048, 1269191, 1450504, 1846096, 2538382, 2901008, 5076764, 10153528, 20307056]

約数ペア:

[(1, 20307056), (2, 10153528), (4, 5076764), (7, 2901008), (8, 2538382), (11, 1846096), (14, 1450504), (16, 1269191), (22, 923048), (28, 725252), (44, 461524), (53, 383152), (56, 362626), (77, 263728), (88, 230762), (106, 191576), (112, 181313), (154, 131864), (176, 115381), (212, 95788), (308, 65932), (311, 65296), (371, 54736), (424, 47894), (583, 34832), (616, 32966), (622, 32648), (742, 27368), (848, 23947), (1166, 17416), (1232, 16483), (1244, 16324), (1484, 13684), (2177, 9328), (2332, 8708), (2488, 8162), (2968, 6842), (3421, 5936), (4081, 4976), (4354, 4664)]