81420032

素因数分解:

$2^8\times {\mathrm{557}}^1\times {\mathrm{571}}^1$

素因数の和:1144

約数の個数: 36

約数和(自身を含む): 163098936

約数和(自身を除く): 81678904

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 557, 571, 1114, 1142, 2228, 2284, 4456, 4568, 8912, 9136, 17824, 18272, 35648, 36544, 71296, 73088, 142592, 146176, 318047, 636094, 1272188, 2544376, 5088752, 10177504, 20355008, 40710016, 81420032]

約数ペア:

[(1, 81420032), (2, 40710016), (4, 20355008), (8, 10177504), (16, 5088752), (32, 2544376), (64, 1272188), (128, 636094), (256, 318047), (557, 146176), (571, 142592), (1114, 73088), (1142, 71296), (2228, 36544), (2284, 35648), (4456, 18272), (4568, 17824), (8912, 9136)]