20412720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{28351}}^1$

素因数の和:28370

約数の個数: 60

約数和(自身を含む): 68555136

約数和(自身を除く): 48142416

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 28351, 56702, 85053, 113404, 141755, 170106, 226808, 255159, 283510, 340212, 425265, 453616, 510318, 567020, 680424, 850530, 1020636, 1134040, 1275795, 1360848, 1701060, 2041272, 2268080, 2551590, 3402120, 4082544, 5103180, 6804240, 10206360, 20412720]

約数ペア:

[(1, 20412720), (2, 10206360), (3, 6804240), (4, 5103180), (5, 4082544), (6, 3402120), (8, 2551590), (9, 2268080), (10, 2041272), (12, 1701060), (15, 1360848), (16, 1275795), (18, 1134040), (20, 1020636), (24, 850530), (30, 680424), (36, 567020), (40, 510318), (45, 453616), (48, 425265), (60, 340212), (72, 283510), (80, 255159), (90, 226808), (120, 170106), (144, 141755), (180, 113404), (240, 85053), (360, 56702), (720, 28351)]