19659540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2087}}^1$

素因数の和:2256

約数の個数: 48

約数和(自身を含む): 55423872

約数和(自身を除く): 35764332

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 157, 314, 471, 628, 785, 942, 1570, 1884, 2087, 2355, 3140, 4174, 4710, 6261, 8348, 9420, 10435, 12522, 20870, 25044, 31305, 41740, 62610, 125220, 327659, 655318, 982977, 1310636, 1638295, 1965954, 3276590, 3931908, 4914885, 6553180, 9829770, 19659540]

約数ペア:

[(1, 19659540), (2, 9829770), (3, 6553180), (4, 4914885), (5, 3931908), (6, 3276590), (10, 1965954), (12, 1638295), (15, 1310636), (20, 982977), (30, 655318), (60, 327659), (157, 125220), (314, 62610), (471, 41740), (628, 31305), (785, 25044), (942, 20870), (1570, 12522), (1884, 10435), (2087, 9420), (2355, 8348), (3140, 6261), (4174, 4710)]