28412080

素因数分解:

$2^4\times 5^1\times {\mathrm{439}}^1\times {\mathrm{809}}^1$

素因数の和:1261

約数の個数: 40

約数和(自身を含む): 66290400

約数和(自身を除く): 37878320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 439, 809, 878, 1618, 1756, 2195, 3236, 3512, 4045, 4390, 6472, 7024, 8090, 8780, 12944, 16180, 17560, 32360, 35120, 64720, 355151, 710302, 1420604, 1775755, 2841208, 3551510, 5682416, 7103020, 14206040, 28412080]

約数ペア:

[(1, 28412080), (2, 14206040), (4, 7103020), (5, 5682416), (8, 3551510), (10, 2841208), (16, 1775755), (20, 1420604), (40, 710302), (80, 355151), (439, 64720), (809, 35120), (878, 32360), (1618, 17560), (1756, 16180), (2195, 12944), (3236, 8780), (3512, 8090), (4045, 7024), (4390, 6472)]