81990195

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{25189}}^1$

素因数の和:25235

約数の個数: 32

約数和(自身を含む): 154767360

約数和(自身を除く): 72777165

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 93, 105, 155, 217, 465, 651, 1085, 3255, 25189, 75567, 125945, 176323, 377835, 528969, 780859, 881615, 2342577, 2644845, 3904295, 5466013, 11712885, 16398039, 27330065, 81990195]

約数ペア:

[(1, 81990195), (3, 27330065), (5, 16398039), (7, 11712885), (15, 5466013), (21, 3904295), (31, 2644845), (35, 2342577), (93, 881615), (105, 780859), (155, 528969), (217, 377835), (465, 176323), (651, 125945), (1085, 75567), (3255, 25189)]