1312360420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{128411}}^1$

素因数の和:128500

約数の個数: 48

約数和(自身を含む): 3192835968

約数和(自身を除く): 1880475548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 1022, 1460, 2044, 2555, 5110, 10220, 128411, 256822, 513644, 642055, 898877, 1284110, 1797754, 2568220, 3595508, 4494385, 8988770, 9374003, 17977540, 18748006, 37496012, 46870015, 65618021, 93740030, 131236042, 187480060, 262472084, 328090105, 656180210, 1312360420]

約数ペア:

[(1, 1312360420), (2, 656180210), (4, 328090105), (5, 262472084), (7, 187480060), (10, 131236042), (14, 93740030), (20, 65618021), (28, 46870015), (35, 37496012), (70, 18748006), (73, 17977540), (140, 9374003), (146, 8988770), (292, 4494385), (365, 3595508), (511, 2568220), (730, 1797754), (1022, 1284110), (1460, 898877), (2044, 642055), (2555, 513644), (5110, 256822), (10220, 128411)]