220178035

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{2903}}^1$

素因数の和:3123

約数の個数: 32

約数和(自身を含む): 331195392

約数和(自身を除く): 111017357

約数列:

[1, 5, 7, 11, 35, 55, 77, 197, 385, 985, 1379, 2167, 2903, 6895, 10835, 14515, 15169, 20321, 31933, 75845, 101605, 159665, 223531, 571891, 1117655, 2859455, 4003237, 6290801, 20016185, 31454005, 44035607, 220178035]

約数ペア:

[(1, 220178035), (5, 44035607), (7, 31454005), (11, 20016185), (35, 6290801), (55, 4003237), (77, 2859455), (197, 1117655), (385, 571891), (985, 223531), (1379, 159665), (2167, 101605), (2903, 75845), (6895, 31933), (10835, 20321), (14515, 15169)]