128839256

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{176977}}^1$

素因数の和:177003

約数の個数: 32

約数和(自身を含む): 297323040

約数和(自身を除く): 168483784

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 176977, 353954, 707908, 1238839, 1415816, 2300701, 2477678, 4601402, 4955356, 9202804, 9910712, 16104907, 18405608, 32209814, 64419628, 128839256]

約数ペア:

[(1, 128839256), (2, 64419628), (4, 32209814), (7, 18405608), (8, 16104907), (13, 9910712), (14, 9202804), (26, 4955356), (28, 4601402), (52, 2477678), (56, 2300701), (91, 1415816), (104, 1238839), (182, 707908), (364, 353954), (728, 176977)]