77811280

素因数分解:

$2^4\times 5^1\times {\mathrm{347}}^1\times {\mathrm{2803}}^1$

素因数の和:3163

約数の個数: 40

約数和(自身を含む): 181497312

約数和(自身を除く): 103686032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 347, 694, 1388, 1735, 2776, 2803, 3470, 5552, 5606, 6940, 11212, 13880, 14015, 22424, 27760, 28030, 44848, 56060, 112120, 224240, 972641, 1945282, 3890564, 4863205, 7781128, 9726410, 15562256, 19452820, 38905640, 77811280]

約数ペア:

[(1, 77811280), (2, 38905640), (4, 19452820), (5, 15562256), (8, 9726410), (10, 7781128), (16, 4863205), (20, 3890564), (40, 1945282), (80, 972641), (347, 224240), (694, 112120), (1388, 56060), (1735, 44848), (2776, 28030), (2803, 27760), (3470, 22424), (5552, 14015), (5606, 13880), (6940, 11212)]