189990000005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3271}}^1\times {\mathrm{24151}}^1$

素因数の和:27477

約数の個数: 32

約数和(自身を含む): 252248898048

約数和(自身を除く): 62258898043

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 3271, 16355, 24151, 42523, 120755, 121027, 212615, 313963, 605135, 893587, 1569815, 1573351, 4467935, 7866755, 11616631, 58083155, 78997921, 394989605, 1026972973, 2922923077, 5134864865, 14614615385, 37998000001, 189990000005]

約数ペア:

[(1, 189990000005), (5, 37998000001), (13, 14614615385), (37, 5134864865), (65, 2922923077), (185, 1026972973), (481, 394989605), (2405, 78997921), (3271, 58083155), (16355, 11616631), (24151, 7866755), (42523, 4467935), (120755, 1573351), (121027, 1569815), (212615, 893587), (313963, 605135)]