131615320

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{30187}}^1$

素因数の和:30307

約数の個数: 32

約数和(自身を含む): 298861200

約数和(自身を除く): 167245880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 30187, 60374, 120748, 150935, 241496, 301870, 603740, 1207480, 3290383, 6580766, 13161532, 16451915, 26323064, 32903830, 65807660, 131615320]

約数ペア:

[(1, 131615320), (2, 65807660), (4, 32903830), (5, 26323064), (8, 16451915), (10, 13161532), (20, 6580766), (40, 3290383), (109, 1207480), (218, 603740), (436, 301870), (545, 241496), (872, 150935), (1090, 120748), (2180, 60374), (4360, 30187)]