1221000555

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{30137}}^1$

素因数の和:30255

約数の個数: 32

約数和(自身を含む): 2033953344

約数和(自身を除く): 812952789

約数列:

[1, 3, 5, 15, 37, 73, 111, 185, 219, 365, 555, 1095, 2701, 8103, 13505, 30137, 40515, 90411, 150685, 452055, 1115069, 2200001, 3345207, 5575345, 6600003, 11000005, 16726035, 33000015, 81400037, 244200111, 407000185, 1221000555]

約数ペア:

[(1, 1221000555), (3, 407000185), (5, 244200111), (15, 81400037), (37, 33000015), (73, 16726035), (111, 11000005), (185, 6600003), (219, 5575345), (365, 3345207), (555, 2200001), (1095, 1115069), (2701, 452055), (8103, 150685), (13505, 90411), (30137, 40515)]