68688255

素因数分解:

$3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1\times {\mathrm{421}}^1$

素因数の和:651

約数の個数: 32

約数和(自身を含む): 112420800

約数和(自身を除く): 43732545

約数列:

[1, 3, 5, 15, 73, 149, 219, 365, 421, 447, 745, 1095, 1263, 2105, 2235, 6315, 10877, 30733, 32631, 54385, 62729, 92199, 153665, 163155, 188187, 313645, 460995, 940935, 4579217, 13737651, 22896085, 68688255]

約数ペア:

[(1, 68688255), (3, 22896085), (5, 13737651), (15, 4579217), (73, 940935), (149, 460995), (219, 313645), (365, 188187), (421, 163155), (447, 153665), (745, 92199), (1095, 62729), (1263, 54385), (2105, 32631), (2235, 30733), (6315, 10877)]