344860

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{401}}^1$

素因数の和:453

約数の個数: 24

約数和(自身を含む): 742896

約数和(自身を除く): 398036

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 401, 430, 802, 860, 1604, 2005, 4010, 8020, 17243, 34486, 68972, 86215, 172430, 344860]

約数ペア:

[(1, 344860), (2, 172430), (4, 86215), (5, 68972), (10, 34486), (20, 17243), (43, 8020), (86, 4010), (172, 2005), (215, 1604), (401, 860), (430, 802)]