398713060

素因数分解:

$2^2\times 5^1\times {\mathrm{1667}}^1\times {\mathrm{11959}}^1$

素因数の和:13635

約数の個数: 24

約数和(自身を含む): 837869760

約数和(自身を除く): 439156700

約数列:

[1, 2, 4, 5, 10, 20, 1667, 3334, 6668, 8335, 11959, 16670, 23918, 33340, 47836, 59795, 119590, 239180, 19935653, 39871306, 79742612, 99678265, 199356530, 398713060]

約数ペア:

[(1, 398713060), (2, 199356530), (4, 99678265), (5, 79742612), (10, 39871306), (20, 19935653), (1667, 239180), (3334, 119590), (6668, 59795), (8335, 47836), (11959, 33340), (16670, 23918)]