81875690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{571}}^1\times {\mathrm{1103}}^1$

素因数の和:1694

約数の個数: 32

約数和(自身を含む): 159134976

約数和(自身を除く): 77259286

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 571, 1103, 1142, 2206, 2855, 5515, 5710, 7423, 11030, 14339, 14846, 28678, 37115, 71695, 74230, 143390, 629813, 1259626, 3149065, 6298130, 8187569, 16375138, 40937845, 81875690]

約数ペア:

[(1, 81875690), (2, 40937845), (5, 16375138), (10, 8187569), (13, 6298130), (26, 3149065), (65, 1259626), (130, 629813), (571, 143390), (1103, 74230), (1142, 71695), (2206, 37115), (2855, 28678), (5515, 14846), (5710, 14339), (7423, 11030)]