66678820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{761}}^1$

素因数の和:1120

約数の個数: 48

約数和(自身を含む): 151442928

約数和(自身を除く): 84764108

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 337, 674, 761, 1348, 1522, 1685, 3044, 3370, 3805, 4381, 6740, 7610, 8762, 9893, 15220, 17524, 19786, 21905, 39572, 43810, 49465, 87620, 98930, 197860, 256457, 512914, 1025828, 1282285, 2564570, 3333941, 5129140, 6667882, 13335764, 16669705, 33339410, 66678820]

約数ペア:

[(1, 66678820), (2, 33339410), (4, 16669705), (5, 13335764), (10, 6667882), (13, 5129140), (20, 3333941), (26, 2564570), (52, 1282285), (65, 1025828), (130, 512914), (260, 256457), (337, 197860), (674, 98930), (761, 87620), (1348, 49465), (1522, 43810), (1685, 39572), (3044, 21905), (3370, 19786), (3805, 17524), (4381, 15220), (6740, 9893), (7610, 8762)]