30781970

素因数分解:

$2^1\times 5^1\times {\mathrm{433}}^1\times {\mathrm{7109}}^1$

素因数の和:7549

約数の個数: 16

約数和(自身を含む): 55543320

約数和(自身を除く): 24761350

約数列:

[1, 2, 5, 10, 433, 866, 2165, 4330, 7109, 14218, 35545, 71090, 3078197, 6156394, 15390985, 30781970]

約数ペア:

[(1, 30781970), (2, 15390985), (5, 6156394), (10, 3078197), (433, 71090), (866, 35545), (2165, 14218), (4330, 7109)]