129121815

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{3307}}^1$

素因数の和:3471

約数の個数: 32

約数和(自身を含む): 219121920

約数和(自身を除く): 90000105

約数列:

[1, 3, 5, 15, 19, 57, 95, 137, 285, 411, 685, 2055, 2603, 3307, 7809, 9921, 13015, 16535, 39045, 49605, 62833, 188499, 314165, 453059, 942495, 1359177, 2265295, 6795885, 8608121, 25824363, 43040605, 129121815]

約数ペア:

[(1, 129121815), (3, 43040605), (5, 25824363), (15, 8608121), (19, 6795885), (57, 2265295), (95, 1359177), (137, 942495), (285, 453059), (411, 314165), (685, 188499), (2055, 62833), (2603, 49605), (3307, 39045), (7809, 16535), (9921, 13015)]