18874520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67409}}^1$

素因数の和:67427

約数の個数: 32

約数和(自身を含む): 48535200

約数和(自身を除く): 29660680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 67409, 134818, 269636, 337045, 471863, 539272, 674090, 943726, 1348180, 1887452, 2359315, 2696360, 3774904, 4718630, 9437260, 18874520]

約数ペア:

[(1, 18874520), (2, 9437260), (4, 4718630), (5, 3774904), (7, 2696360), (8, 2359315), (10, 1887452), (14, 1348180), (20, 943726), (28, 674090), (35, 539272), (40, 471863), (56, 337045), (70, 269636), (140, 134818), (280, 67409)]