31329040

素因数分解:

$2^4\times 5^1\times {\mathrm{391613}}^1$

素因数の和:391626

約数の個数: 20

約数和(自身を含む): 72840204

約数和(自身を除く): 41511164

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 391613, 783226, 1566452, 1958065, 3132904, 3916130, 6265808, 7832260, 15664520, 31329040]

約数ペア:

[(1, 31329040), (2, 15664520), (4, 7832260), (5, 6265808), (8, 3916130), (10, 3132904), (16, 1958065), (20, 1566452), (40, 783226), (80, 391613)]