209849590

素因数分解:

$2^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{269}}^1\times {\mathrm{431}}^1$

素因数の和:888

約数の個数: 32

約数和(自身を含む): 382112640

約数和(自身を除く): 172263050

約数列:

[1, 2, 5, 10, 181, 269, 362, 431, 538, 862, 905, 1345, 1810, 2155, 2690, 4310, 48689, 78011, 97378, 115939, 156022, 231878, 243445, 390055, 486890, 579695, 780110, 1159390, 20984959, 41969918, 104924795, 209849590]

約数ペア:

[(1, 209849590), (2, 104924795), (5, 41969918), (10, 20984959), (181, 1159390), (269, 780110), (362, 579695), (431, 486890), (538, 390055), (862, 243445), (905, 231878), (1345, 156022), (1810, 115939), (2155, 97378), (2690, 78011), (4310, 48689)]