20056059905

素因数分解:

$5^1\times 7^2\times {\mathrm{641}}^1\times {\mathrm{127709}}^1$

素因数の和:128369

約数の個数: 24

約数和(自身を含む): 28040518440

約数和(自身を除く): 7984458535

約数列:

[1, 5, 7, 35, 49, 245, 641, 3205, 4487, 22435, 31409, 127709, 157045, 638545, 893963, 4469815, 6257741, 31288705, 81861469, 409307345, 573030283, 2865151415, 4011211981, 20056059905]

約数ペア:

[(1, 20056059905), (5, 4011211981), (7, 2865151415), (35, 573030283), (49, 409307345), (245, 81861469), (641, 31288705), (3205, 6257741), (4487, 4469815), (22435, 893963), (31409, 638545), (127709, 157045)]