20121247930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{666929}}^1$

素因数の和:667374

約数の個数: 32

約数和(自身を含む): 41488381440

約数和(自身を除く): 21367133510

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 431, 862, 2155, 3017, 4310, 6034, 15085, 30170, 666929, 1333858, 3334645, 4668503, 6669290, 9337006, 23342515, 46685030, 287446399, 574892798, 1437231995, 2012124793, 2874463990, 4024249586, 10060623965, 20121247930]

約数ペア:

[(1, 20121247930), (2, 10060623965), (5, 4024249586), (7, 2874463990), (10, 2012124793), (14, 1437231995), (35, 574892798), (70, 287446399), (431, 46685030), (862, 23342515), (2155, 9337006), (3017, 6669290), (4310, 4668503), (6034, 3334645), (15085, 1333858), (30170, 666929)]