408064880

素因数分解:

$2^4\times 5^1\times {\mathrm{5100811}}^1$

素因数の和:5100824

約数の個数: 20

約数和(自身を含む): 948751032

約数和(自身を除く): 540686152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5100811, 10201622, 20403244, 25504055, 40806488, 51008110, 81612976, 102016220, 204032440, 408064880]

約数ペア:

[(1, 408064880), (2, 204032440), (4, 102016220), (5, 81612976), (8, 51008110), (10, 40806488), (16, 25504055), (20, 20403244), (40, 10201622), (80, 5100811)]