66813520

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{8269}}^1$

素因数の和:8383

約数の個数: 40

約数和(自身を含む): 156898440

約数和(自身を除く): 90084920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 4040, 8080, 8269, 16538, 33076, 41345, 66152, 82690, 132304, 165380, 330760, 661520, 835169, 1670338, 3340676, 4175845, 6681352, 8351690, 13362704, 16703380, 33406760, 66813520]

約数ペア:

[(1, 66813520), (2, 33406760), (4, 16703380), (5, 13362704), (8, 8351690), (10, 6681352), (16, 4175845), (20, 3340676), (40, 1670338), (80, 835169), (101, 661520), (202, 330760), (404, 165380), (505, 132304), (808, 82690), (1010, 66152), (1616, 41345), (2020, 33076), (4040, 16538), (8080, 8269)]