64088740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{78157}}^1$

素因数の和:78207

約数の個数: 24

約数和(自身を含む): 137870712

約数和(自身を除く): 73781972

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 78157, 156314, 312628, 390785, 781570, 1563140, 3204437, 6408874, 12817748, 16022185, 32044370, 64088740]

約数ペア:

[(1, 64088740), (2, 32044370), (4, 16022185), (5, 12817748), (10, 6408874), (20, 3204437), (41, 1563140), (82, 781570), (164, 390785), (205, 312628), (410, 156314), (820, 78157)]