80821790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{12973}}^1$

素因数の和:13076

約数の個数: 32

約数和(自身を含む): 168143040

約数和(自身を除く): 87321250

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 89, 178, 445, 623, 890, 1246, 3115, 6230, 12973, 25946, 64865, 90811, 129730, 181622, 454055, 908110, 1154597, 2309194, 5772985, 8082179, 11545970, 16164358, 40410895, 80821790]

約数ペア:

[(1, 80821790), (2, 40410895), (5, 16164358), (7, 11545970), (10, 8082179), (14, 5772985), (35, 2309194), (70, 1154597), (89, 908110), (178, 454055), (445, 181622), (623, 129730), (890, 90811), (1246, 64865), (3115, 25946), (6230, 12973)]