699940

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{443}}^1$

素因数の和:531

約数の個数: 24

約数和(自身を含む): 1491840

約数和(自身を除く): 791900

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 443, 790, 886, 1580, 1772, 2215, 4430, 8860, 34997, 69994, 139988, 174985, 349970, 699940]

約数ペア:

[(1, 699940), (2, 349970), (4, 174985), (5, 139988), (10, 69994), (20, 34997), (79, 8860), (158, 4430), (316, 2215), (395, 1772), (443, 1580), (790, 886)]