213948920

素因数分解:

$2^3\times 5^1\times {\mathrm{653}}^1\times {\mathrm{8191}}^1$

素因数の和:8855

約数の個数: 32

約数和(自身を含む): 482181120

約数和(自身を除く): 268232200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 653, 1306, 2612, 3265, 5224, 6530, 8191, 13060, 16382, 26120, 32764, 40955, 65528, 81910, 163820, 327640, 5348723, 10697446, 21394892, 26743615, 42789784, 53487230, 106974460, 213948920]

約数ペア:

[(1, 213948920), (2, 106974460), (4, 53487230), (5, 42789784), (8, 26743615), (10, 21394892), (20, 10697446), (40, 5348723), (653, 327640), (1306, 163820), (2612, 81910), (3265, 65528), (5224, 40955), (6530, 32764), (8191, 26120), (13060, 16382)]