19616980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{57697}}^1$

素因数の和:57723

約数の個数: 24

約数和(自身を含む): 43619688

約数和(自身を除く): 24002708

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 57697, 115394, 230788, 288485, 576970, 980849, 1153940, 1961698, 3923396, 4904245, 9808490, 19616980]

約数ペア:

[(1, 19616980), (2, 9808490), (4, 4904245), (5, 3923396), (10, 1961698), (17, 1153940), (20, 980849), (34, 576970), (68, 288485), (85, 230788), (170, 115394), (340, 57697)]