81505424.000000000

素因数分解:

$2^7\times {\mathrm{337}}^1\times {\mathrm{2351}}^1$

素因数の和:2702

約数の個数: 32

約数和(自身を含む): 202718880

約数和(自身を除く): 101306144

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 337, 674, 1348, 2351, 2696, 4702, 5392, 9404, 10784, 18808, 21568, 37616, 43136, 75232, 150464, 300928, 792287, 1584574, 3169148, 6338296, 12676592, 25353184, 50706368, 101412736]

約数ペア:

[(1, 101412736), (2, 50706368), (4, 25353184), (8, 12676592), (16, 6338296), (32, 3169148), (64, 1584574), (128, 792287), (337, 300928), (674, 150464), (1348, 75232), (2351, 43136), (2696, 37616), (4702, 21568), (5392, 18808), (9404, 10784)]