18839968220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{22975571}}^1$

素因数の和:22975621

約数の個数: 24

約数和(自身を含む): 40528909008

約数和(自身を除く): 21688940788

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 22975571, 45951142, 91902284, 114877855, 229755710, 459511420, 941998411, 1883996822, 3767993644, 4709992055, 9419984110, 18839968220]

約数ペア:

[(1, 18839968220), (2, 9419984110), (4, 4709992055), (5, 3767993644), (10, 1883996822), (20, 941998411), (41, 459511420), (82, 229755710), (164, 114877855), (205, 91902284), (410, 45951142), (820, 22975571)]