2889990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{197}}^1$

素因数の和:373

約数の個数: 48

約数和(自身を含む): 7598448

約数和(自身を除く): 4708458

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 163, 197, 326, 394, 489, 591, 815, 978, 985, 1182, 1467, 1630, 1773, 1970, 2445, 2934, 2955, 3546, 4890, 5910, 7335, 8865, 14670, 17730, 32111, 64222, 96333, 160555, 192666, 288999, 321110, 481665, 577998, 963330, 1444995, 2889990]

約数ペア:

[(1, 2889990), (2, 1444995), (3, 963330), (5, 577998), (6, 481665), (9, 321110), (10, 288999), (15, 192666), (18, 160555), (30, 96333), (45, 64222), (90, 32111), (163, 17730), (197, 14670), (326, 8865), (394, 7335), (489, 5910), (591, 4890), (815, 3546), (978, 2955), (985, 2934), (1182, 2445), (1467, 1970), (1630, 1773)]