1290321.00000000

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{53269}}^1$

素因数の和:53378

約数の個数: 20

約数和(自身を含む): 168439740

約数和(自身を除く): 82357036

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 53269, 106538, 213076, 426152, 852304, 5380169, 10760338, 21520676, 43041352, 86082704]

約数ペア:

[(1, 86082704), (2, 43041352), (4, 21520676), (8, 10760338), (16, 5380169), (101, 852304), (202, 426152), (404, 213076), (808, 106538), (1616, 53269)]