18257720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{35111}}^1$

素因数の和:35135

約数の個数: 32

約数和(自身を含む): 44241120

約数和(自身を除く): 25983400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 35111, 70222, 140444, 175555, 280888, 351110, 456443, 702220, 912886, 1404440, 1825772, 2282215, 3651544, 4564430, 9128860, 18257720]

約数ペア:

[(1, 18257720), (2, 9128860), (4, 4564430), (5, 3651544), (8, 2282215), (10, 1825772), (13, 1404440), (20, 912886), (26, 702220), (40, 456443), (52, 351110), (65, 280888), (104, 175555), (130, 140444), (260, 70222), (520, 35111)]