19740040

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{2557}}^1$

素因数の和:2761

約数の個数: 32

約数和(自身を含む): 44662680

約数和(自身を除く): 24922640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 386, 772, 965, 1544, 1930, 2557, 3860, 5114, 7720, 10228, 12785, 20456, 25570, 51140, 102280, 493501, 987002, 1974004, 2467505, 3948008, 4935010, 9870020, 19740040]

約数ペア:

[(1, 19740040), (2, 9870020), (4, 4935010), (5, 3948008), (8, 2467505), (10, 1974004), (20, 987002), (40, 493501), (193, 102280), (386, 51140), (772, 25570), (965, 20456), (1544, 12785), (1930, 10228), (2557, 7720), (3860, 5114)]