8400190

素因数分解:

$2^1\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1949}}^1$

素因数の和:2387

約数の個数: 16

約数和(自身を含む): 15163200

約数和(自身を除く): 6763010

約数列:

[1, 2, 5, 10, 431, 862, 1949, 2155, 3898, 4310, 9745, 19490, 840019, 1680038, 4200095, 8400190]

約数ペア:

[(1, 8400190), (2, 4200095), (5, 1680038), (10, 840019), (431, 19490), (862, 9745), (1949, 4310), (2155, 3898)]