490613260040

素因数分解:

$2^3\times 5^1\times {\mathrm{12265331501}}^1$

素因数の和:12265331512

約数の個数: 16

約数和(自身を含む): 1103879835180

約数和(自身を除く): 613266575140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 12265331501, 24530663002, 49061326004, 61326657505, 98122652008, 122653315010, 245306630020, 490613260040]

約数ペア:

[(1, 490613260040), (2, 245306630020), (4, 122653315010), (5, 98122652008), (8, 61326657505), (10, 49061326004), (20, 24530663002), (40, 12265331501)]