20381120

素因数分解:

$2^6\times 5^1\times {\mathrm{63691}}^1$

素因数の和:63708

約数の個数: 28

約数和(自身を含む): 48533304

約数和(自身を除く): 28152184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 63691, 127382, 254764, 318455, 509528, 636910, 1019056, 1273820, 2038112, 2547640, 4076224, 5095280, 10190560, 20381120]

約数ペア:

[(1, 20381120), (2, 10190560), (4, 5095280), (5, 4076224), (8, 2547640), (10, 2038112), (16, 1273820), (20, 1019056), (32, 636910), (40, 509528), (64, 318455), (80, 254764), (160, 127382), (320, 63691)]