20009456

素因数分解:

$2^4\times {\mathrm{641}}^1\times {\mathrm{1951}}^1$

素因数の和:2600

約数の個数: 20

約数和(自身を含む): 38848704

約数和(自身を除く): 18839248

約数列:

[1, 2, 4, 8, 16, 641, 1282, 1951, 2564, 3902, 5128, 7804, 10256, 15608, 31216, 1250591, 2501182, 5002364, 10004728, 20009456]

約数ペア:

[(1, 20009456), (2, 10004728), (4, 5002364), (8, 2501182), (16, 1250591), (641, 31216), (1282, 15608), (1951, 10256), (2564, 7804), (3902, 5128)]