86467720

素因数分解:

$2^3\times 5^1\times {\mathrm{821}}^1\times {\mathrm{2633}}^1$

素因数の和:3465

約数の個数: 32

約数和(自身を含む): 194863320

約数和(自身を除く): 108395600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 821, 1642, 2633, 3284, 4105, 5266, 6568, 8210, 10532, 13165, 16420, 21064, 26330, 32840, 52660, 105320, 2161693, 4323386, 8646772, 10808465, 17293544, 21616930, 43233860, 86467720]

約数ペア:

[(1, 86467720), (2, 43233860), (4, 21616930), (5, 17293544), (8, 10808465), (10, 8646772), (20, 4323386), (40, 2161693), (821, 105320), (1642, 52660), (2633, 32840), (3284, 26330), (4105, 21064), (5266, 16420), (6568, 13165), (8210, 10532)]