220697785

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{15493}}^1$

素因数の和:15553

約数の個数: 32

約数和(自身を含む): 339132672

約数和(自身を除く): 118434887

約数列:

[1, 5, 7, 11, 35, 37, 55, 77, 185, 259, 385, 407, 1295, 2035, 2849, 14245, 15493, 77465, 108451, 170423, 542255, 573241, 852115, 1192961, 2866205, 4012687, 5964805, 6305651, 20063435, 31528255, 44139557, 220697785]

約数ペア:

[(1, 220697785), (5, 44139557), (7, 31528255), (11, 20063435), (35, 6305651), (37, 5964805), (55, 4012687), (77, 2866205), (185, 1192961), (259, 852115), (385, 573241), (407, 542255), (1295, 170423), (2035, 108451), (2849, 77465), (14245, 15493)]