28016440

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{4297}}^1$

素因数の和:4471

約数の個数: 32

約数和(自身を含む): 63438480

約数和(自身を除く): 35422040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 4297, 6520, 8594, 17188, 21485, 34376, 42970, 85940, 171880, 700411, 1400822, 2801644, 3502055, 5603288, 7004110, 14008220, 28016440]

約数ペア:

[(1, 28016440), (2, 14008220), (4, 7004110), (5, 5603288), (8, 3502055), (10, 2801644), (20, 1400822), (40, 700411), (163, 171880), (326, 85940), (652, 42970), (815, 34376), (1304, 21485), (1630, 17188), (3260, 8594), (4297, 6520)]