172800620

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1\times {\mathrm{503}}^1$

素因数の和:794

約数の個数: 48

約数和(自身を含む): 369593280

約数和(自身を除く): 196792660

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 193, 356, 386, 445, 503, 772, 890, 965, 1006, 1780, 1930, 2012, 2515, 3860, 5030, 10060, 17177, 34354, 44767, 68708, 85885, 89534, 97079, 171770, 179068, 194158, 223835, 343540, 388316, 447670, 485395, 895340, 970790, 1941580, 8640031, 17280062, 34560124, 43200155, 86400310, 172800620]

約数ペア:

[(1, 172800620), (2, 86400310), (4, 43200155), (5, 34560124), (10, 17280062), (20, 8640031), (89, 1941580), (178, 970790), (193, 895340), (356, 485395), (386, 447670), (445, 388316), (503, 343540), (772, 223835), (890, 194158), (965, 179068), (1006, 171770), (1780, 97079), (1930, 89534), (2012, 85885), (2515, 68708), (3860, 44767), (5030, 34354), (10060, 17177)]