20078135

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{431}}^1$

素因数の和:476

約数の個数: 32

約数和(自身を含む): 30357504

約数和(自身を除く): 10279369

約数列:

[1, 5, 7, 11, 35, 55, 77, 121, 385, 431, 605, 847, 1331, 2155, 3017, 4235, 4741, 6655, 9317, 15085, 23705, 33187, 46585, 52151, 165935, 260755, 365057, 573661, 1825285, 2868305, 4015627, 20078135]

約数ペア:

[(1, 20078135), (5, 4015627), (7, 2868305), (11, 1825285), (35, 573661), (55, 365057), (77, 260755), (121, 165935), (385, 52151), (431, 46585), (605, 33187), (847, 23705), (1331, 15085), (2155, 9317), (3017, 6655), (4235, 4741)]