645252873

素因数分解:

$3^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:509

約数の個数: 32

約数和(自身を含む): 890373120

約数和(自身を除く): 245120247

約数列:

[1, 3, 83, 103, 139, 181, 249, 309, 417, 543, 8549, 11537, 14317, 15023, 18643, 25159, 25647, 34611, 42951, 45069, 55929, 75477, 1188311, 1547369, 2088197, 2591377, 3564933, 4642107, 6264591, 7774131, 215084291, 645252873]

約数ペア:

[(1, 645252873), (3, 215084291), (83, 7774131), (103, 6264591), (139, 4642107), (181, 3564933), (249, 2591377), (309, 2088197), (417, 1547369), (543, 1188311), (8549, 75477), (11537, 55929), (14317, 45069), (15023, 42951), (18643, 34611), (25159, 25647)]