27993880

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{9857}}^1$

素因数の和:9939

約数の個数: 32

約数和(自身を含む): 63879840

約数和(自身を除く): 35885960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 9857, 19714, 39428, 49285, 78856, 98570, 197140, 394280, 699847, 1399694, 2799388, 3499235, 5598776, 6998470, 13996940, 27993880]

約数ペア:

[(1, 27993880), (2, 13996940), (4, 6998470), (5, 5598776), (8, 3499235), (10, 2799388), (20, 1399694), (40, 699847), (71, 394280), (142, 197140), (284, 98570), (355, 78856), (568, 49285), (710, 39428), (1420, 19714), (2840, 9857)]