65451220

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{8161}}^1$

素因数の和:8571

約数の個数: 24

約数和(自身を含む): 137807208

約数和(自身を除く): 72355988

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 4010, 8020, 8161, 16322, 32644, 40805, 81610, 163220, 3272561, 6545122, 13090244, 16362805, 32725610, 65451220]

約数ペア:

[(1, 65451220), (2, 32725610), (4, 16362805), (5, 13090244), (10, 6545122), (20, 3272561), (401, 163220), (802, 81610), (1604, 40805), (2005, 32644), (4010, 16322), (8020, 8161)]