20778896385

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1409}}^1\times {\mathrm{2801}}^1$

素因数の和:4240

約数の個数: 80

約数和(自身を含む): 40156134480

約数和(自身を除く): 19377238095

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 351, 405, 585, 1053, 1409, 1755, 2801, 4227, 5265, 7045, 8403, 12681, 14005, 18317, 21135, 25209, 36413, 38043, 42015, 54951, 63405, 75627, 91585, 109239, 114129, 126045, 164853, 182065, 190215, 226881, 274755, 327717, 378135, 494559, 546195, 570645, 824265, 983151, 1134405, 1483677, 1638585, 2472795, 2949453, 3946609, 4915755, 7418385, 11839827, 14747265, 19733045, 35519481, 51305917, 59199135, 106558443, 153917751, 177597405, 256529585, 319675329, 461753253, 532792215, 769588755, 1385259759, 1598376645, 2308766265, 4155779277, 6926298795, 20778896385]

約数ペア:

[(1, 20778896385), (3, 6926298795), (5, 4155779277), (9, 2308766265), (13, 1598376645), (15, 1385259759), (27, 769588755), (39, 532792215), (45, 461753253), (65, 319675329), (81, 256529585), (117, 177597405), (135, 153917751), (195, 106558443), (351, 59199135), (405, 51305917), (585, 35519481), (1053, 19733045), (1409, 14747265), (1755, 11839827), (2801, 7418385), (4227, 4915755), (5265, 3946609), (7045, 2949453), (8403, 2472795), (12681, 1638585), (14005, 1483677), (18317, 1134405), (21135, 983151), (25209, 824265), (36413, 570645), (38043, 546195), (42015, 494559), (54951, 378135), (63405, 327717), (75627, 274755), (91585, 226881), (109239, 190215), (114129, 182065), (126045, 164853)]