634350820

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{77549}}^1$

素因数の和:77967

約数の個数: 24

約数和(自身を含む): 1335411000

約数和(自身を除く): 701060180

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8180, 77549, 155098, 310196, 387745, 775490, 1550980, 31717541, 63435082, 126870164, 158587705, 317175410, 634350820]

約数ペア:

[(1, 634350820), (2, 317175410), (4, 158587705), (5, 126870164), (10, 63435082), (20, 31717541), (409, 1550980), (818, 775490), (1636, 387745), (2045, 310196), (4090, 155098), (8180, 77549)]