71500820

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{40169}}^1$

素因数の和:40267

約数の個数: 24

約数和(自身を含む): 151842600

約数和(自身を除く): 80341780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 40169, 80338, 160676, 200845, 401690, 803380, 3575041, 7150082, 14300164, 17875205, 35750410, 71500820]

約数ペア:

[(1, 71500820), (2, 35750410), (4, 17875205), (5, 14300164), (10, 7150082), (20, 3575041), (89, 803380), (178, 401690), (356, 200845), (445, 160676), (890, 80338), (1780, 40169)]