20510560

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{18313}}^1$

素因数の和:18335

約数の個数: 48

約数和(自身を含む): 55381536

約数和(自身を除く): 34870976

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 18313, 36626, 73252, 91565, 128191, 146504, 183130, 256382, 293008, 366260, 512764, 586016, 640955, 732520, 1025528, 1281910, 1465040, 2051056, 2563820, 2930080, 4102112, 5127640, 10255280, 20510560]

約数ペア:

[(1, 20510560), (2, 10255280), (4, 5127640), (5, 4102112), (7, 2930080), (8, 2563820), (10, 2051056), (14, 1465040), (16, 1281910), (20, 1025528), (28, 732520), (32, 640955), (35, 586016), (40, 512764), (56, 366260), (70, 293008), (80, 256382), (112, 183130), (140, 146504), (160, 128191), (224, 91565), (280, 73252), (560, 36626), (1120, 18313)]