20909060

素因数分解:

$2^2\times 5^1\times {\mathrm{653}}^1\times {\mathrm{1601}}^1$

素因数の和:2263

約数の個数: 24

約数和(自身を含む): 44003736

約数和(自身を除く): 23094676

約数列:

[1, 2, 4, 5, 10, 20, 653, 1306, 1601, 2612, 3202, 3265, 6404, 6530, 8005, 13060, 16010, 32020, 1045453, 2090906, 4181812, 5227265, 10454530, 20909060]

約数ペア:

[(1, 20909060), (2, 10454530), (4, 5227265), (5, 4181812), (10, 2090906), (20, 1045453), (653, 32020), (1306, 16010), (1601, 13060), (2612, 8005), (3202, 6530), (3265, 6404)]