12564940

素因数分解:

$2^2\times 5^1\times {\mathrm{503}}^1\times {\mathrm{1249}}^1$

素因数の和:1761

約数の個数: 24

約数和(自身を含む): 26460000

約数和(自身を除く): 13895060

約数列:

[1, 2, 4, 5, 10, 20, 503, 1006, 1249, 2012, 2498, 2515, 4996, 5030, 6245, 10060, 12490, 24980, 628247, 1256494, 2512988, 3141235, 6282470, 12564940]

約数ペア:

[(1, 12564940), (2, 6282470), (4, 3141235), (5, 2512988), (10, 1256494), (20, 628247), (503, 24980), (1006, 12490), (1249, 10060), (2012, 6245), (2498, 5030), (2515, 4996)]