8889553990

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{21681839}}^1$

素因数の和:21681887

約数の個数: 16

約数和(自身を含む): 16391471040

約数和(自身を除く): 7501917050

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 21681839, 43363678, 108409195, 216818390, 888955399, 1777910798, 4444776995, 8889553990]

約数ペア:

[(1, 8889553990), (2, 4444776995), (5, 1777910798), (10, 888955399), (41, 216818390), (82, 108409195), (205, 43363678), (410, 21681839)]