2588440

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{397}}^1$

素因数の和:571

約数の個数: 32

約数和(自身を含む): 5874480

約数和(自身を除く): 3286040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 397, 652, 794, 815, 1304, 1588, 1630, 1985, 3176, 3260, 3970, 6520, 7940, 15880, 64711, 129422, 258844, 323555, 517688, 647110, 1294220, 2588440]

約数ペア:

[(1, 2588440), (2, 1294220), (4, 647110), (5, 517688), (8, 323555), (10, 258844), (20, 129422), (40, 64711), (163, 15880), (326, 7940), (397, 6520), (652, 3970), (794, 3260), (815, 3176), (1304, 1985), (1588, 1630)]