20289870

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{1493}}^1$

素因数の和:1657

約数の個数: 48

約数和(自身を含む): 53138592

約数和(自身を除く): 32848722

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 151, 302, 453, 755, 906, 1359, 1493, 1510, 2265, 2718, 2986, 4479, 4530, 6795, 7465, 8958, 13437, 13590, 14930, 22395, 26874, 44790, 67185, 134370, 225443, 450886, 676329, 1127215, 1352658, 2028987, 2254430, 3381645, 4057974, 6763290, 10144935, 20289870]

約数ペア:

[(1, 20289870), (2, 10144935), (3, 6763290), (5, 4057974), (6, 3381645), (9, 2254430), (10, 2028987), (15, 1352658), (18, 1127215), (30, 676329), (45, 450886), (90, 225443), (151, 134370), (302, 67185), (453, 44790), (755, 26874), (906, 22395), (1359, 14930), (1493, 13590), (1510, 13437), (2265, 8958), (2718, 7465), (2986, 6795), (4479, 4530)]