81471960

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{75437}}^1$

素因数の和:75457

約数の個数: 64

約数和(自身を含む): 271576800

約数和(自身を除く): 190104840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 75437, 150874, 226311, 301748, 377185, 452622, 603496, 678933, 754370, 905244, 1131555, 1357866, 1508740, 1810488, 2036799, 2263110, 2715732, 3017480, 3394665, 4073598, 4526220, 5431464, 6789330, 8147196, 9052440, 10183995, 13578660, 16294392, 20367990, 27157320, 40735980, 81471960]

約数ペア:

[(1, 81471960), (2, 40735980), (3, 27157320), (4, 20367990), (5, 16294392), (6, 13578660), (8, 10183995), (9, 9052440), (10, 8147196), (12, 6789330), (15, 5431464), (18, 4526220), (20, 4073598), (24, 3394665), (27, 3017480), (30, 2715732), (36, 2263110), (40, 2036799), (45, 1810488), (54, 1508740), (60, 1357866), (72, 1131555), (90, 905244), (108, 754370), (120, 678933), (135, 603496), (180, 452622), (216, 377185), (270, 301748), (360, 226311), (540, 150874), (1080, 75437)]