1987780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5231}}^1$

素因数の和:5259

約数の個数: 24

約数和(自身を含む): 4394880

約数和(自身を除く): 2407100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 5231, 10462, 20924, 26155, 52310, 99389, 104620, 198778, 397556, 496945, 993890, 1987780]

約数ペア:

[(1, 1987780), (2, 993890), (4, 496945), (5, 397556), (10, 198778), (19, 104620), (20, 99389), (38, 52310), (76, 26155), (95, 20924), (190, 10462), (380, 5231)]