20055728

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{223}}^1$

素因数の和:322

約数の個数: 80

約数和(自身を含む): 49330176

約数和(自身を除く): 29274448

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 73, 77, 88, 112, 146, 154, 176, 223, 292, 308, 446, 511, 584, 616, 803, 892, 1022, 1168, 1232, 1561, 1606, 1784, 2044, 2453, 3122, 3212, 3568, 4088, 4906, 5621, 6244, 6424, 8176, 9812, 11242, 12488, 12848, 16279, 17171, 19624, 22484, 24976, 32558, 34342, 39248, 44968, 65116, 68684, 89936, 113953, 130232, 137368, 179069, 227906, 260464, 274736, 358138, 455812, 716276, 911624, 1253483, 1432552, 1823248, 2506966, 2865104, 5013932, 10027864, 20055728]

約数ペア:

[(1, 20055728), (2, 10027864), (4, 5013932), (7, 2865104), (8, 2506966), (11, 1823248), (14, 1432552), (16, 1253483), (22, 911624), (28, 716276), (44, 455812), (56, 358138), (73, 274736), (77, 260464), (88, 227906), (112, 179069), (146, 137368), (154, 130232), (176, 113953), (223, 89936), (292, 68684), (308, 65116), (446, 44968), (511, 39248), (584, 34342), (616, 32558), (803, 24976), (892, 22484), (1022, 19624), (1168, 17171), (1232, 16279), (1561, 12848), (1606, 12488), (1784, 11242), (2044, 9812), (2453, 8176), (3122, 6424), (3212, 6244), (3568, 5621), (4088, 4906)]