30915880

素因数分解:

$2^3\times 5^1\times {\mathrm{757}}^1\times {\mathrm{1021}}^1$

素因数の和:1789

約数の個数: 32

約数和(自身を含む): 69720840

約数和(自身を除く): 38804960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 757, 1021, 1514, 2042, 3028, 3785, 4084, 5105, 6056, 7570, 8168, 10210, 15140, 20420, 30280, 40840, 772897, 1545794, 3091588, 3864485, 6183176, 7728970, 15457940, 30915880]

約数ペア:

[(1, 30915880), (2, 15457940), (4, 7728970), (5, 6183176), (8, 3864485), (10, 3091588), (20, 1545794), (40, 772897), (757, 40840), (1021, 30280), (1514, 20420), (2042, 15140), (3028, 10210), (3785, 8168), (4084, 7570), (5105, 6056)]