20121990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{95819}}^1$

素因数の和:95836

約数の個数: 32

約数和(自身を含む): 55192320

約数和(自身を除く): 35070330

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 95819, 191638, 287457, 479095, 574914, 670733, 958190, 1341466, 1437285, 2012199, 2874570, 3353665, 4024398, 6707330, 10060995, 20121990]

約数ペア:

[(1, 20121990), (2, 10060995), (3, 6707330), (5, 4024398), (6, 3353665), (7, 2874570), (10, 2012199), (14, 1437285), (15, 1341466), (21, 958190), (30, 670733), (35, 574914), (42, 479095), (70, 287457), (105, 191638), (210, 95819)]