28044080

素因数分解:

$2^4\times 5^1\times {\mathrm{397}}^1\times {\mathrm{883}}^1$

素因数の和:1293

約数の個数: 40

約数和(自身を含む): 65440752

約数和(自身を除く): 37396672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397, 794, 883, 1588, 1766, 1985, 3176, 3532, 3970, 4415, 6352, 7064, 7940, 8830, 14128, 15880, 17660, 31760, 35320, 70640, 350551, 701102, 1402204, 1752755, 2804408, 3505510, 5608816, 7011020, 14022040, 28044080]

約数ペア:

[(1, 28044080), (2, 14022040), (4, 7011020), (5, 5608816), (8, 3505510), (10, 2804408), (16, 1752755), (20, 1402204), (40, 701102), (80, 350551), (397, 70640), (794, 35320), (883, 31760), (1588, 17660), (1766, 15880), (1985, 14128), (3176, 8830), (3532, 7940), (3970, 7064), (4415, 6352)]