20512863560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73260227}}^1$

素因数の和:73260245

約数の個数: 32

約数和(自身を含む): 52747364160

約数和(自身を除く): 32234500600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 73260227, 146520454, 293040908, 366301135, 512821589, 586081816, 732602270, 1025643178, 1465204540, 2051286356, 2564107945, 2930409080, 4102572712, 5128215890, 10256431780, 20512863560]

約数ペア:

[(1, 20512863560), (2, 10256431780), (4, 5128215890), (5, 4102572712), (7, 2930409080), (8, 2564107945), (10, 2051286356), (14, 1465204540), (20, 1025643178), (28, 732602270), (35, 586081816), (40, 512821589), (56, 366301135), (70, 293040908), (140, 146520454), (280, 73260227)]