820912225

素因数分解:

$5^2\times 7^1\times {\mathrm{443}}^1\times {\mathrm{10589}}^1$

素因数の和:11049

約数の個数: 24

約数和(自身を含む): 1166086080

約数和(自身を除く): 345173855

約数列:

[1, 5, 7, 25, 35, 175, 443, 2215, 3101, 10589, 11075, 15505, 52945, 74123, 77525, 264725, 370615, 1853075, 4690927, 23454635, 32836489, 117273175, 164182445, 820912225]

約数ペア:

[(1, 820912225), (5, 164182445), (7, 117273175), (25, 32836489), (35, 23454635), (175, 4690927), (443, 1853075), (2215, 370615), (3101, 264725), (10589, 77525), (11075, 74123), (15505, 52945)]