28773560

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1669}}^1$

素因数の和:2111

約数の個数: 32

約数和(自身を含む): 64929600

約数和(自身を除く): 36156040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1669, 1724, 2155, 3338, 3448, 4310, 6676, 8345, 8620, 13352, 16690, 17240, 33380, 66760, 719339, 1438678, 2877356, 3596695, 5754712, 7193390, 14386780, 28773560]

約数ペア:

[(1, 28773560), (2, 14386780), (4, 7193390), (5, 5754712), (8, 3596695), (10, 2877356), (20, 1438678), (40, 719339), (431, 66760), (862, 33380), (1669, 17240), (1724, 16690), (2155, 13352), (3338, 8620), (3448, 8345), (4310, 6676)]