81485520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4651}}^1$

素因数の和:4740

約数の個数: 80

約数和(自身を含む): 256120512

約数和(自身を除く): 174634992

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 73, 80, 120, 146, 219, 240, 292, 365, 438, 584, 730, 876, 1095, 1168, 1460, 1752, 2190, 2920, 3504, 4380, 4651, 5840, 8760, 9302, 13953, 17520, 18604, 23255, 27906, 37208, 46510, 55812, 69765, 74416, 93020, 111624, 139530, 186040, 223248, 279060, 339523, 372080, 558120, 679046, 1018569, 1116240, 1358092, 1697615, 2037138, 2716184, 3395230, 4074276, 5092845, 5432368, 6790460, 8148552, 10185690, 13580920, 16297104, 20371380, 27161840, 40742760, 81485520]

約数ペア:

[(1, 81485520), (2, 40742760), (3, 27161840), (4, 20371380), (5, 16297104), (6, 13580920), (8, 10185690), (10, 8148552), (12, 6790460), (15, 5432368), (16, 5092845), (20, 4074276), (24, 3395230), (30, 2716184), (40, 2037138), (48, 1697615), (60, 1358092), (73, 1116240), (80, 1018569), (120, 679046), (146, 558120), (219, 372080), (240, 339523), (292, 279060), (365, 223248), (438, 186040), (584, 139530), (730, 111624), (876, 93020), (1095, 74416), (1168, 69765), (1460, 55812), (1752, 46510), (2190, 37208), (2920, 27906), (3504, 23255), (4380, 18604), (4651, 17520), (5840, 13953), (8760, 9302)]