19940452015

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1913}}^1\times {\mathrm{2399}}^1$

素因数の和:4407

約数の個数: 32

約数和(自身を含む): 26459136000

約数和(自身を除く): 6518683985

約数列:

[1, 5, 11, 55, 79, 395, 869, 1913, 2399, 4345, 9565, 11995, 21043, 26389, 105215, 131945, 151127, 189521, 755635, 947605, 1662397, 2084731, 4589287, 8311985, 10423655, 22946435, 50482157, 252410785, 362553673, 1812768365, 3988090403, 19940452015]

約数ペア:

[(1, 19940452015), (5, 3988090403), (11, 1812768365), (55, 362553673), (79, 252410785), (395, 50482157), (869, 22946435), (1913, 10423655), (2399, 8311985), (4345, 4589287), (9565, 2084731), (11995, 1662397), (21043, 947605), (26389, 755635), (105215, 189521), (131945, 151127)]