81267690

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{386989}}^1$

素因数の和:387006

約数の個数: 32

約数和(自身を含む): 222906240

約数和(自身を除く): 141638550

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 386989, 773978, 1160967, 1934945, 2321934, 2708923, 3869890, 5417846, 5804835, 8126769, 11609670, 13544615, 16253538, 27089230, 40633845, 81267690]

約数ペア:

[(1, 81267690), (2, 40633845), (3, 27089230), (5, 16253538), (6, 13544615), (7, 11609670), (10, 8126769), (14, 5804835), (15, 5417846), (21, 3869890), (30, 2708923), (35, 2321934), (42, 1934945), (70, 1160967), (105, 773978), (210, 386989)]