81454815

素因数分解:

$3^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1$

素因数の和:233

約数の個数: 72

約数和(自身を含む): 158715648

約数和(自身を除く): 77260833

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 191, 195, 243, 351, 405, 573, 585, 729, 955, 1053, 1215, 1719, 1755, 2187, 2483, 2865, 3159, 3645, 5157, 5265, 6561, 7449, 8595, 9477, 10935, 12415, 15471, 15795, 22347, 25785, 28431, 32805, 37245, 46413, 47385, 67041, 77355, 85293, 111735, 139239, 142155, 201123, 232065, 335205, 417717, 426465, 603369, 696195, 1005615, 1253151, 1810107, 2088585, 3016845, 5430321, 6265755, 9050535, 16290963, 27151605, 81454815]

約数ペア:

[(1, 81454815), (3, 27151605), (5, 16290963), (9, 9050535), (13, 6265755), (15, 5430321), (27, 3016845), (39, 2088585), (45, 1810107), (65, 1253151), (81, 1005615), (117, 696195), (135, 603369), (191, 426465), (195, 417717), (243, 335205), (351, 232065), (405, 201123), (573, 142155), (585, 139239), (729, 111735), (955, 85293), (1053, 77355), (1215, 67041), (1719, 47385), (1755, 46413), (2187, 37245), (2483, 32805), (2865, 28431), (3159, 25785), (3645, 22347), (5157, 15795), (5265, 15471), (6561, 12415), (7449, 10935), (8595, 9477)]