19013920

素因数分解:

$2^5\times 5^1\times {\mathrm{151}}^1\times {\mathrm{787}}^1$

素因数の和:953

約数の個数: 48

約数和(自身を含む): 45275328

約数和(自身を除く): 26261408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 151, 160, 302, 604, 755, 787, 1208, 1510, 1574, 2416, 3020, 3148, 3935, 4832, 6040, 6296, 7870, 12080, 12592, 15740, 24160, 25184, 31480, 62960, 118837, 125920, 237674, 475348, 594185, 950696, 1188370, 1901392, 2376740, 3802784, 4753480, 9506960, 19013920]

約数ペア:

[(1, 19013920), (2, 9506960), (4, 4753480), (5, 3802784), (8, 2376740), (10, 1901392), (16, 1188370), (20, 950696), (32, 594185), (40, 475348), (80, 237674), (151, 125920), (160, 118837), (302, 62960), (604, 31480), (755, 25184), (787, 24160), (1208, 15740), (1510, 12592), (1574, 12080), (2416, 7870), (3020, 6296), (3148, 6040), (3935, 4832)]