631146280

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{100501}}^1$

素因数の和:100669

約数の個数: 32

約数和(自身を含む): 1429138440

約数和(自身を除く): 797992160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 100501, 201002, 402004, 502505, 804008, 1005010, 2010020, 4020040, 15778657, 31557314, 63114628, 78893285, 126229256, 157786570, 315573140, 631146280]

約数ペア:

[(1, 631146280), (2, 315573140), (4, 157786570), (5, 126229256), (8, 78893285), (10, 63114628), (20, 31557314), (40, 15778657), (157, 4020040), (314, 2010020), (628, 1005010), (785, 804008), (1256, 502505), (1570, 402004), (3140, 201002), (6280, 100501)]