20113380080

素因数分解:

$2^4\times 5^1\times {\mathrm{251417251}}^1$

素因数の和:251417264

約数の個数: 20

約数和(自身を含む): 46763608872

約数和(自身を除く): 26650228792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251417251, 502834502, 1005669004, 1257086255, 2011338008, 2514172510, 4022676016, 5028345020, 10056690040, 20113380080]

約数ペア:

[(1, 20113380080), (2, 10056690040), (4, 5028345020), (5, 4022676016), (8, 2514172510), (10, 2011338008), (16, 1257086255), (20, 1005669004), (40, 502834502), (80, 251417251)]