406635140

素因数分解:

$2^2\times 5^1\times {\mathrm{1697}}^1\times {\mathrm{11981}}^1$

素因数の和:13687

約数の個数: 24

約数和(自身を含む): 854508312

約数和(自身を除く): 447873172

約数列:

[1, 2, 4, 5, 10, 20, 1697, 3394, 6788, 8485, 11981, 16970, 23962, 33940, 47924, 59905, 119810, 239620, 20331757, 40663514, 81327028, 101658785, 203317570, 406635140]

約数ペア:

[(1, 406635140), (2, 203317570), (4, 101658785), (5, 81327028), (10, 40663514), (20, 20331757), (1697, 239620), (3394, 119810), (6788, 59905), (8485, 47924), (11981, 33940), (16970, 23962)]