2009149840

素因数分解:

$2^4\times 5^1\times {\mathrm{25114373}}^1$

素因数の和:25114386

約数の個数: 20

約数和(自身を含む): 4671273564

約数和(自身を除く): 2662123724

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25114373, 50228746, 100457492, 125571865, 200914984, 251143730, 401829968, 502287460, 1004574920, 2009149840]

約数ペア:

[(1, 2009149840), (2, 1004574920), (4, 502287460), (5, 401829968), (8, 251143730), (10, 200914984), (16, 125571865), (20, 100457492), (40, 50228746), (80, 25114373)]