39944980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{22441}}^1$

素因数の和:22539

約数の個数: 24

約数和(自身を含む): 84830760

約数和(自身を除く): 44885780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 22441, 44882, 89764, 112205, 224410, 448820, 1997249, 3994498, 7988996, 9986245, 19972490, 39944980]

約数ペア:

[(1, 39944980), (2, 19972490), (4, 9986245), (5, 7988996), (10, 3994498), (20, 1997249), (89, 448820), (178, 224410), (356, 112205), (445, 89764), (890, 44882), (1780, 22441)]