781540130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{31991}}^1$

素因数の和:32354

約数の個数: 32

約数和(自身を含む): 1612396800

約数和(自身を除く): 830856670

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 349, 698, 1745, 2443, 3490, 4886, 12215, 24430, 31991, 63982, 159955, 223937, 319910, 447874, 1119685, 2239370, 11164859, 22329718, 55824295, 78154013, 111648590, 156308026, 390770065, 781540130]

約数ペア:

[(1, 781540130), (2, 390770065), (5, 156308026), (7, 111648590), (10, 78154013), (14, 55824295), (35, 22329718), (70, 11164859), (349, 2239370), (698, 1119685), (1745, 447874), (2443, 319910), (3490, 223937), (4886, 159955), (12215, 63982), (24430, 31991)]