1307205

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1$

素因数の和:458

約数の個数: 32

約数和(自身を含む): 2430720

約数和(自身を除く): 1123515

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 207, 345, 421, 621, 1035, 1263, 2105, 3105, 3789, 6315, 9683, 11367, 18945, 29049, 48415, 56835, 87147, 145245, 261441, 435735, 1307205]

約数ペア:

[(1, 1307205), (3, 435735), (5, 261441), (9, 145245), (15, 87147), (23, 56835), (27, 48415), (45, 29049), (69, 18945), (115, 11367), (135, 9683), (207, 6315), (345, 3789), (421, 3105), (621, 2105), (1035, 1263)]