20305404

素因数分解:

$2^2\times 3^4\times 7^2\times {\mathrm{1279}}^1$

素因数の和:1309

約数の個数: 90

約数和(自身を含む): 61797120

約数和(自身を除く): 41491716

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 81, 84, 98, 108, 126, 147, 162, 189, 196, 252, 294, 324, 378, 441, 567, 588, 756, 882, 1134, 1279, 1323, 1764, 2268, 2558, 2646, 3837, 3969, 5116, 5292, 7674, 7938, 8953, 11511, 15348, 15876, 17906, 23022, 26859, 34533, 35812, 46044, 53718, 62671, 69066, 80577, 103599, 107436, 125342, 138132, 161154, 188013, 207198, 241731, 250684, 322308, 376026, 414396, 483462, 564039, 725193, 752052, 966924, 1128078, 1450386, 1692117, 2256156, 2900772, 3384234, 5076351, 6768468, 10152702, 20305404]

約数ペア:

[(1, 20305404), (2, 10152702), (3, 6768468), (4, 5076351), (6, 3384234), (7, 2900772), (9, 2256156), (12, 1692117), (14, 1450386), (18, 1128078), (21, 966924), (27, 752052), (28, 725193), (36, 564039), (42, 483462), (49, 414396), (54, 376026), (63, 322308), (81, 250684), (84, 241731), (98, 207198), (108, 188013), (126, 161154), (147, 138132), (162, 125342), (189, 107436), (196, 103599), (252, 80577), (294, 69066), (324, 62671), (378, 53718), (441, 46044), (567, 35812), (588, 34533), (756, 26859), (882, 23022), (1134, 17906), (1279, 15876), (1323, 15348), (1764, 11511), (2268, 8953), (2558, 7938), (2646, 7674), (3837, 5292), (3969, 5116)]