409296880

素因数分解:

$2^4\times 5^1\times {\mathrm{5116211}}^1$

素因数の和:5116224

約数の個数: 20

約数和(自身を含む): 951615432

約数和(自身を除く): 542318552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5116211, 10232422, 20464844, 25581055, 40929688, 51162110, 81859376, 102324220, 204648440, 409296880]

約数ペア:

[(1, 409296880), (2, 204648440), (4, 102324220), (5, 81859376), (8, 51162110), (10, 40929688), (16, 25581055), (20, 20464844), (40, 10232422), (80, 5116211)]