20121270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{51593}}^1$

素因数の和:51616

約数の個数: 32

約数和(自身を含む): 52006752

約数和(自身を除く): 31885482

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 51593, 103186, 154779, 257965, 309558, 515930, 670709, 773895, 1341418, 1547790, 2012127, 3353545, 4024254, 6707090, 10060635, 20121270]

約数ペア:

[(1, 20121270), (2, 10060635), (3, 6707090), (5, 4024254), (6, 3353545), (10, 2012127), (13, 1547790), (15, 1341418), (26, 773895), (30, 670709), (39, 515930), (65, 309558), (78, 257965), (130, 154779), (195, 103186), (390, 51593)]