90381680

素因数分解:

$2^4\times 5^1\times {\mathrm{947}}^1\times {\mathrm{1193}}^1$

素因数の和:2153

約数の個数: 40

約数和(自身を含む): 210535632

約数和(自身を除く): 120153952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 947, 1193, 1894, 2386, 3788, 4735, 4772, 5965, 7576, 9470, 9544, 11930, 15152, 18940, 19088, 23860, 37880, 47720, 75760, 95440, 1129771, 2259542, 4519084, 5648855, 9038168, 11297710, 18076336, 22595420, 45190840, 90381680]

約数ペア:

[(1, 90381680), (2, 45190840), (4, 22595420), (5, 18076336), (8, 11297710), (10, 9038168), (16, 5648855), (20, 4519084), (40, 2259542), (80, 1129771), (947, 95440), (1193, 75760), (1894, 47720), (2386, 37880), (3788, 23860), (4735, 19088), (4772, 18940), (5965, 15152), (7576, 11930), (9470, 9544)]