1489712980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{10640807}}^1$

素因数の和:10640823

約数の個数: 24

約数和(自身を含む): 3575311488

約数和(自身を除く): 2085598508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 10640807, 21281614, 42563228, 53204035, 74485649, 106408070, 148971298, 212816140, 297942596, 372428245, 744856490, 1489712980]

約数ペア:

[(1, 1489712980), (2, 744856490), (4, 372428245), (5, 297942596), (7, 212816140), (10, 148971298), (14, 106408070), (20, 74485649), (28, 53204035), (35, 42563228), (70, 21281614), (140, 10640807)]