1618520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{941}}^1$

素因数の和:995

約数の個数: 32

約数和(自身を含む): 3730320

約数和(自身を除く): 2111800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 941, 1720, 1882, 3764, 4705, 7528, 9410, 18820, 37640, 40463, 80926, 161852, 202315, 323704, 404630, 809260, 1618520]

約数ペア:

[(1, 1618520), (2, 809260), (4, 404630), (5, 323704), (8, 202315), (10, 161852), (20, 80926), (40, 40463), (43, 37640), (86, 18820), (172, 9410), (215, 7528), (344, 4705), (430, 3764), (860, 1882), (941, 1720)]