20381008

素因数分解:

$2^4\times {\mathrm{449}}^1\times {\mathrm{2837}}^1$

素因数の和:3294

約数の個数: 20

約数和(自身を含む): 39590100

約数和(自身を除く): 19209092

約数列:

[1, 2, 4, 8, 16, 449, 898, 1796, 2837, 3592, 5674, 7184, 11348, 22696, 45392, 1273813, 2547626, 5095252, 10190504, 20381008]

約数ペア:

[(1, 20381008), (2, 10190504), (4, 5095252), (8, 2547626), (16, 1273813), (449, 45392), (898, 22696), (1796, 11348), (2837, 7184), (3592, 5674)]