81696105

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:203

約数の個数: 72

約数和(自身を含む): 154058112

約数和(自身を除く): 72362007

約数列:

[1, 3, 5, 9, 15, 19, 45, 47, 57, 95, 107, 141, 171, 235, 285, 321, 361, 423, 535, 705, 855, 893, 963, 1083, 1605, 1805, 2033, 2115, 2679, 3249, 4465, 4815, 5029, 5415, 6099, 8037, 10165, 13395, 15087, 16245, 16967, 18297, 25145, 30495, 38627, 40185, 45261, 50901, 75435, 84835, 91485, 95551, 115881, 152703, 193135, 226305, 254505, 286653, 347643, 477755, 579405, 763515, 859959, 1433265, 1738215, 1815469, 4299795, 5446407, 9077345, 16339221, 27232035, 81696105]

約数ペア:

[(1, 81696105), (3, 27232035), (5, 16339221), (9, 9077345), (15, 5446407), (19, 4299795), (45, 1815469), (47, 1738215), (57, 1433265), (95, 859959), (107, 763515), (141, 579405), (171, 477755), (235, 347643), (285, 286653), (321, 254505), (361, 226305), (423, 193135), (535, 152703), (705, 115881), (855, 95551), (893, 91485), (963, 84835), (1083, 75435), (1605, 50901), (1805, 45261), (2033, 40185), (2115, 38627), (2679, 30495), (3249, 25145), (4465, 18297), (4815, 16967), (5029, 16245), (5415, 15087), (6099, 13395), (8037, 10165)]