81008900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{115727}}^1$

素因数の和:115748

約数の個数: 36

約数和(自身を含む): 200903808

約数和(自身を除く): 119894908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 115727, 231454, 462908, 578635, 810089, 1157270, 1620178, 2314540, 2893175, 3240356, 4050445, 5786350, 8100890, 11572700, 16201780, 20252225, 40504450, 81008900]

約数ペア:

[(1, 81008900), (2, 40504450), (4, 20252225), (5, 16201780), (7, 11572700), (10, 8100890), (14, 5786350), (20, 4050445), (25, 3240356), (28, 2893175), (35, 2314540), (50, 1620178), (70, 1157270), (100, 810089), (140, 578635), (175, 462908), (350, 231454), (700, 115727)]