20923160

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{5179}}^1$

素因数の和:5291

約数の個数: 32

約数和(自身を含む): 47552400

約数和(自身を除く): 26629240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 5179, 10358, 20716, 25895, 41432, 51790, 103580, 207160, 523079, 1046158, 2092316, 2615395, 4184632, 5230790, 10461580, 20923160]

約数ペア:

[(1, 20923160), (2, 10461580), (4, 5230790), (5, 4184632), (8, 2615395), (10, 2092316), (20, 1046158), (40, 523079), (101, 207160), (202, 103580), (404, 51790), (505, 41432), (808, 25895), (1010, 20716), (2020, 10358), (4040, 5179)]