2798980

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{401}}^1$

素因数の和:759

約数の個数: 24

約数和(自身を含む): 5909400

約数和(自身を除く): 3110420

約数列:

[1, 2, 4, 5, 10, 20, 349, 401, 698, 802, 1396, 1604, 1745, 2005, 3490, 4010, 6980, 8020, 139949, 279898, 559796, 699745, 1399490, 2798980]

約数ペア:

[(1, 2798980), (2, 1399490), (4, 699745), (5, 559796), (10, 279898), (20, 139949), (349, 8020), (401, 6980), (698, 4010), (802, 3490), (1396, 2005), (1604, 1745)]