87172415

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{503}}^1$

素因数の和:679

約数の個数: 32

約数和(自身を含む): 120185856

約数和(自身を除く): 33013441

約数列:

[1, 5, 11, 23, 55, 115, 137, 253, 503, 685, 1265, 1507, 2515, 3151, 5533, 7535, 11569, 15755, 27665, 34661, 57845, 68911, 127259, 173305, 344555, 636295, 758021, 1584953, 3790105, 7924765, 17434483, 87172415]

約数ペア:

[(1, 87172415), (5, 17434483), (11, 7924765), (23, 3790105), (55, 1584953), (115, 758021), (137, 636295), (253, 344555), (503, 173305), (685, 127259), (1265, 68911), (1507, 57845), (2515, 34661), (3151, 27665), (5533, 15755), (7535, 11569)]