61978120

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{6029}}^1$

素因数の和:6297

約数の個数: 32

約数和(自身を含む): 140016600

約数和(自身を除く): 78038480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 6029, 10280, 12058, 24116, 30145, 48232, 60290, 120580, 241160, 1549453, 3098906, 6197812, 7747265, 12395624, 15494530, 30989060, 61978120]

約数ペア:

[(1, 61978120), (2, 30989060), (4, 15494530), (5, 12395624), (8, 7747265), (10, 6197812), (20, 3098906), (40, 1549453), (257, 241160), (514, 120580), (1028, 60290), (1285, 48232), (2056, 30145), (2570, 24116), (5140, 12058), (6029, 10280)]