20578536580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{347}}^1\times {\mathrm{423601}}^1$

素因数の和:423964

約数の個数: 48

約数和(自身を含む): 49530934656

約数和(自身を除く): 28952398076

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 347, 694, 1388, 1735, 2429, 3470, 4858, 6940, 9716, 12145, 24290, 48580, 423601, 847202, 1694404, 2118005, 2965207, 4236010, 5930414, 8472020, 11860828, 14826035, 29652070, 59304140, 146989547, 293979094, 587958188, 734947735, 1028926829, 1469895470, 2057853658, 2939790940, 4115707316, 5144634145, 10289268290, 20578536580]

約数ペア:

[(1, 20578536580), (2, 10289268290), (4, 5144634145), (5, 4115707316), (7, 2939790940), (10, 2057853658), (14, 1469895470), (20, 1028926829), (28, 734947735), (35, 587958188), (70, 293979094), (140, 146989547), (347, 59304140), (694, 29652070), (1388, 14826035), (1735, 11860828), (2429, 8472020), (3470, 5930414), (4858, 4236010), (6940, 2965207), (9716, 2118005), (12145, 1694404), (24290, 847202), (48580, 423601)]