248142705

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{661}}^1\times {\mathrm{863}}^1$

素因数の和:1561

約数の個数: 32

約数和(自身を含む): 411816960

約数和(自身を除く): 163674255

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 661, 863, 1983, 2589, 3305, 4315, 9915, 12945, 19169, 25027, 57507, 75081, 95845, 125135, 287535, 375405, 570443, 1711329, 2852215, 8556645, 16542847, 49628541, 82714235, 248142705]

約数ペア:

[(1, 248142705), (3, 82714235), (5, 49628541), (15, 16542847), (29, 8556645), (87, 2852215), (145, 1711329), (435, 570443), (661, 375405), (863, 287535), (1983, 125135), (2589, 95845), (3305, 75081), (4315, 57507), (9915, 25027), (12945, 19169)]