256091920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{457307}}^1$

素因数の和:457327

約数の個数: 40

約数和(自身を含む): 680474304

約数和(自身を除く): 424382384

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 457307, 914614, 1829228, 2286535, 3201149, 3658456, 4573070, 6402298, 7316912, 9146140, 12804596, 16005745, 18292280, 25609192, 32011490, 36584560, 51218384, 64022980, 128045960, 256091920]

約数ペア:

[(1, 256091920), (2, 128045960), (4, 64022980), (5, 51218384), (7, 36584560), (8, 32011490), (10, 25609192), (14, 18292280), (16, 16005745), (20, 12804596), (28, 9146140), (35, 7316912), (40, 6402298), (56, 4573070), (70, 3658456), (80, 3201149), (112, 2286535), (140, 1829228), (280, 914614), (560, 457307)]