28089160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{63839}}^1$

素因数の和:63861

約数の個数: 32

約数和(自身を含む): 68947200

約数和(自身を除く): 40858040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 63839, 127678, 255356, 319195, 510712, 638390, 702229, 1276780, 1404458, 2553560, 2808916, 3511145, 5617832, 7022290, 14044580, 28089160]

約数ペア:

[(1, 28089160), (2, 14044580), (4, 7022290), (5, 5617832), (8, 3511145), (10, 2808916), (11, 2553560), (20, 1404458), (22, 1276780), (40, 702229), (44, 638390), (55, 510712), (88, 319195), (110, 255356), (220, 127678), (440, 63839)]