20161217980

素因数分解:

$2^2\times 5^1\times {\mathrm{827}}^1\times {\mathrm{853}}^1\times {\mathrm{1429}}^1$

素因数の和:3118

約数の個数: 48

約数和(自身を含む): 42469146720

約数和(自身を除く): 22307928740

約数列:

[1, 2, 4, 5, 10, 20, 827, 853, 1429, 1654, 1706, 2858, 3308, 3412, 4135, 4265, 5716, 7145, 8270, 8530, 14290, 16540, 17060, 28580, 705431, 1181783, 1218937, 1410862, 2363566, 2437874, 2821724, 3527155, 4727132, 4875748, 5908915, 6094685, 7054310, 11817830, 12189370, 14108620, 23635660, 24378740, 1008060899, 2016121798, 4032243596, 5040304495, 10080608990, 20161217980]

約数ペア:

[(1, 20161217980), (2, 10080608990), (4, 5040304495), (5, 4032243596), (10, 2016121798), (20, 1008060899), (827, 24378740), (853, 23635660), (1429, 14108620), (1654, 12189370), (1706, 11817830), (2858, 7054310), (3308, 6094685), (3412, 5908915), (4135, 4875748), (4265, 4727132), (5716, 3527155), (7145, 2821724), (8270, 2437874), (8530, 2363566), (14290, 1410862), (16540, 1218937), (17060, 1181783), (28580, 705431)]