7979980

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{2089}}^1$

素因数の和:2289

約数の個数: 24

約数和(自身を含む): 16853760

約数和(自身を除く): 8873780

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 2089, 3820, 4178, 8356, 10445, 20890, 41780, 398999, 797998, 1595996, 1994995, 3989990, 7979980]

約数ペア:

[(1, 7979980), (2, 3989990), (4, 1994995), (5, 1595996), (10, 797998), (20, 398999), (191, 41780), (382, 20890), (764, 10445), (955, 8356), (1910, 4178), (2089, 3820)]