72721575

素因数分解:

$3^2\times 5^2\times {\mathrm{323207}}^1$

素因数の和:323223

約数の個数: 18

約数和(自身を含む): 130252824

約数和(自身を除く): 57531249

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 323207, 969621, 1616035, 2908863, 4848105, 8080175, 14544315, 24240525, 72721575]

約数ペア:

[(1, 72721575), (3, 24240525), (5, 14544315), (9, 8080175), (15, 4848105), (25, 2908863), (45, 1616035), (75, 969621), (225, 323207)]