80388440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{182701}}^1$

素因数の和:182723

約数の個数: 32

約数和(自身を含む): 197318160

約数和(自身を除く): 116929720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 182701, 365402, 730804, 913505, 1461608, 1827010, 2009711, 3654020, 4019422, 7308040, 8038844, 10048555, 16077688, 20097110, 40194220, 80388440]

約数ペア:

[(1, 80388440), (2, 40194220), (4, 20097110), (5, 16077688), (8, 10048555), (10, 8038844), (11, 7308040), (20, 4019422), (22, 3654020), (40, 2009711), (44, 1827010), (55, 1461608), (88, 913505), (110, 730804), (220, 365402), (440, 182701)]