19691560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{70327}}^1$

素因数の和:70345

約数の個数: 32

約数和(自身を含む): 50636160

約数和(自身を除く): 30944600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 70327, 140654, 281308, 351635, 492289, 562616, 703270, 984578, 1406540, 1969156, 2461445, 2813080, 3938312, 4922890, 9845780, 19691560]

約数ペア:

[(1, 19691560), (2, 9845780), (4, 4922890), (5, 3938312), (7, 2813080), (8, 2461445), (10, 1969156), (14, 1406540), (20, 984578), (28, 703270), (35, 562616), (40, 492289), (56, 351635), (70, 281308), (140, 140654), (280, 70327)]