279067160

素因数分解:

$2^3\times 5^1\times {\mathrm{6976679}}^1$

素因数の和:6976690

約数の個数: 16

約数和(自身を含む): 627901200

約数和(自身を除く): 348834040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6976679, 13953358, 27906716, 34883395, 55813432, 69766790, 139533580, 279067160]

約数ペア:

[(1, 279067160), (2, 139533580), (4, 69766790), (5, 55813432), (8, 34883395), (10, 27906716), (20, 13953358), (40, 6976679)]