81172415

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{241}}^1$

素因数の和:371

約数の個数: 32

約数和(自身を含む): 105380352

約数和(自身を除く): 24207937

約数列:

[1, 5, 31, 41, 53, 155, 205, 241, 265, 1205, 1271, 1643, 2173, 6355, 7471, 8215, 9881, 10865, 12773, 37355, 49405, 63865, 67363, 306311, 336815, 395963, 523693, 1531555, 1979815, 2618465, 16234483, 81172415]

約数ペア:

[(1, 81172415), (5, 16234483), (31, 2618465), (41, 1979815), (53, 1531555), (155, 523693), (205, 395963), (241, 336815), (265, 306311), (1205, 67363), (1271, 63865), (1643, 49405), (2173, 37355), (6355, 12773), (7471, 10865), (8215, 9881)]