12972440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1$

素因数の和:157

約数の個数: 96

約数和(自身を含む): 33598800

約数和(自身を除く): 20626360

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 101, 104, 130, 152, 169, 190, 202, 247, 260, 338, 380, 404, 494, 505, 520, 676, 760, 808, 845, 988, 1010, 1235, 1313, 1352, 1690, 1919, 1976, 2020, 2470, 2626, 3211, 3380, 3838, 4040, 4940, 5252, 6422, 6565, 6760, 7676, 9595, 9880, 10504, 12844, 13130, 15352, 16055, 17069, 19190, 24947, 25688, 26260, 32110, 34138, 38380, 49894, 52520, 64220, 68276, 76760, 85345, 99788, 124735, 128440, 136552, 170690, 199576, 249470, 324311, 341380, 498940, 648622, 682760, 997880, 1297244, 1621555, 2594488, 3243110, 6486220, 12972440]

約数ペア:

[(1, 12972440), (2, 6486220), (4, 3243110), (5, 2594488), (8, 1621555), (10, 1297244), (13, 997880), (19, 682760), (20, 648622), (26, 498940), (38, 341380), (40, 324311), (52, 249470), (65, 199576), (76, 170690), (95, 136552), (101, 128440), (104, 124735), (130, 99788), (152, 85345), (169, 76760), (190, 68276), (202, 64220), (247, 52520), (260, 49894), (338, 38380), (380, 34138), (404, 32110), (494, 26260), (505, 25688), (520, 24947), (676, 19190), (760, 17069), (808, 16055), (845, 15352), (988, 13130), (1010, 12844), (1235, 10504), (1313, 9880), (1352, 9595), (1690, 7676), (1919, 6760), (1976, 6565), (2020, 6422), (2470, 5252), (2626, 4940), (3211, 4040), (3380, 3838)]