28695980

素因数分解:

$2^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{3329}}^1$

素因数の和:3769

約数の個数: 24

約数和(自身を含む): 60419520

約数和(自身を除く): 31723540

約数列:

[1, 2, 4, 5, 10, 20, 431, 862, 1724, 2155, 3329, 4310, 6658, 8620, 13316, 16645, 33290, 66580, 1434799, 2869598, 5739196, 7173995, 14347990, 28695980]

約数ペア:

[(1, 28695980), (2, 14347990), (4, 7173995), (5, 5739196), (10, 2869598), (20, 1434799), (431, 66580), (862, 33290), (1724, 16645), (2155, 13316), (3329, 8620), (4310, 6658)]