128460740

素因数分解:

$2^2\times 5^1\times {\mathrm{1301}}^1\times {\mathrm{4937}}^1$

素因数の和:6247

約数の個数: 24

約数和(自身を含む): 270029592

約数和(自身を除く): 141568852

約数列:

[1, 2, 4, 5, 10, 20, 1301, 2602, 4937, 5204, 6505, 9874, 13010, 19748, 24685, 26020, 49370, 98740, 6423037, 12846074, 25692148, 32115185, 64230370, 128460740]

約数ペア:

[(1, 128460740), (2, 64230370), (4, 32115185), (5, 25692148), (10, 12846074), (20, 6423037), (1301, 98740), (2602, 49370), (4937, 26020), (5204, 24685), (6505, 19748), (9874, 13010)]