123221285

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{401}}^1$

素因数の和:605

約数の個数: 32

約数和(自身を含む): 167180544

約数和(自身を除く): 43959259

約数列:

[1, 5, 11, 37, 55, 151, 185, 401, 407, 755, 1661, 2005, 2035, 4411, 5587, 8305, 14837, 22055, 27935, 60551, 61457, 74185, 163207, 302755, 307285, 666061, 816035, 2240387, 3330305, 11201935, 24644257, 123221285]

約数ペア:

[(1, 123221285), (5, 24644257), (11, 11201935), (37, 3330305), (55, 2240387), (151, 816035), (185, 666061), (401, 307285), (407, 302755), (755, 163207), (1661, 74185), (2005, 61457), (2035, 60551), (4411, 27935), (5587, 22055), (8305, 14837)]