28277560

素因数分解:

$2^3\times 5^1\times {\mathrm{797}}^1\times {\mathrm{887}}^1$

素因数の和:1695

約数の個数: 32

約数和(自身を含む): 63776160

約数和(自身を除く): 35498600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 797, 887, 1594, 1774, 3188, 3548, 3985, 4435, 6376, 7096, 7970, 8870, 15940, 17740, 31880, 35480, 706939, 1413878, 2827756, 3534695, 5655512, 7069390, 14138780, 28277560]

約数ペア:

[(1, 28277560), (2, 14138780), (4, 7069390), (5, 5655512), (8, 3534695), (10, 2827756), (20, 1413878), (40, 706939), (797, 35480), (887, 31880), (1594, 17740), (1774, 15940), (3188, 8870), (3548, 7970), (3985, 7096), (4435, 6376)]