398728

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1$

素因数の和:237

約数の個数: 32

約数和(自身を含む): 855360

約数和(自身を除く): 456632

約数列:

[1, 2, 4, 8, 11, 22, 23, 44, 46, 88, 92, 184, 197, 253, 394, 506, 788, 1012, 1576, 2024, 2167, 4334, 4531, 8668, 9062, 17336, 18124, 36248, 49841, 99682, 199364, 398728]

約数ペア:

[(1, 398728), (2, 199364), (4, 99682), (8, 49841), (11, 36248), (22, 18124), (23, 17336), (44, 9062), (46, 8668), (88, 4531), (92, 4334), (184, 2167), (197, 2024), (253, 1576), (394, 1012), (506, 788)]