81715680

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{56747}}^1$

素因数の和:56768

約数の個数: 72

約数和(自身を含む): 278859672

約数和(自身を除く): 197143992

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 56747, 113494, 170241, 226988, 283735, 340482, 453976, 510723, 567470, 680964, 851205, 907952, 1021446, 1134940, 1361928, 1702410, 1815904, 2042892, 2269880, 2553615, 2723856, 3404820, 4085784, 4539760, 5107230, 5447712, 6809640, 8171568, 9079520, 10214460, 13619280, 16343136, 20428920, 27238560, 40857840, 81715680]

約数ペア:

[(1, 81715680), (2, 40857840), (3, 27238560), (4, 20428920), (5, 16343136), (6, 13619280), (8, 10214460), (9, 9079520), (10, 8171568), (12, 6809640), (15, 5447712), (16, 5107230), (18, 4539760), (20, 4085784), (24, 3404820), (30, 2723856), (32, 2553615), (36, 2269880), (40, 2042892), (45, 1815904), (48, 1702410), (60, 1361928), (72, 1134940), (80, 1021446), (90, 907952), (96, 851205), (120, 680964), (144, 567470), (160, 510723), (180, 453976), (240, 340482), (288, 283735), (360, 226988), (480, 170241), (720, 113494), (1440, 56747)]