181963640

素因数分解:

$2^3\times 5^1\times {\mathrm{1693}}^1\times {\mathrm{2687}}^1$

素因数の和:4391

約数の個数: 32

約数和(自身を含む): 409812480

約数和(自身を除く): 227848840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1693, 2687, 3386, 5374, 6772, 8465, 10748, 13435, 13544, 16930, 21496, 26870, 33860, 53740, 67720, 107480, 4549091, 9098182, 18196364, 22745455, 36392728, 45490910, 90981820, 181963640]

約数ペア:

[(1, 181963640), (2, 90981820), (4, 45490910), (5, 36392728), (8, 22745455), (10, 18196364), (20, 9098182), (40, 4549091), (1693, 107480), (2687, 67720), (3386, 53740), (5374, 33860), (6772, 26870), (8465, 21496), (10748, 16930), (13435, 13544)]