128450828

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{78901}}^1$

素因数の和:78953

約数の個数: 24

約数和(自身を含む): 251855184

約数和(自身を除く): 123404356

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 407, 814, 1628, 78901, 157802, 315604, 867911, 1735822, 2919337, 3471644, 5838674, 11677348, 32112707, 64225414, 128450828]

約数ペア:

[(1, 128450828), (2, 64225414), (4, 32112707), (11, 11677348), (22, 5838674), (37, 3471644), (44, 2919337), (74, 1735822), (148, 867911), (407, 315604), (814, 157802), (1628, 78901)]