19406960

素因数分解:

$2^4\times 5^1\times {\mathrm{367}}^1\times {\mathrm{661}}^1$

素因数の和:1041

約数の個数: 40

約数和(自身を含む): 45312576

約数和(自身を除く): 25905616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 367, 661, 734, 1322, 1468, 1835, 2644, 2936, 3305, 3670, 5288, 5872, 6610, 7340, 10576, 13220, 14680, 26440, 29360, 52880, 242587, 485174, 970348, 1212935, 1940696, 2425870, 3881392, 4851740, 9703480, 19406960]

約数ペア:

[(1, 19406960), (2, 9703480), (4, 4851740), (5, 3881392), (8, 2425870), (10, 1940696), (16, 1212935), (20, 970348), (40, 485174), (80, 242587), (367, 52880), (661, 29360), (734, 26440), (1322, 14680), (1468, 13220), (1835, 10576), (2644, 7340), (2936, 6610), (3305, 5872), (3670, 5288)]