20440545

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1129}}^1$

素因数の和:1225

約数の個数: 32

約数和(自身を含む): 35147520

約数和(自身を除く): 14706975

約数列:

[1, 3, 5, 15, 17, 51, 71, 85, 213, 255, 355, 1065, 1129, 1207, 3387, 3621, 5645, 6035, 16935, 18105, 19193, 57579, 80159, 95965, 240477, 287895, 400795, 1202385, 1362703, 4088109, 6813515, 20440545]

約数ペア:

[(1, 20440545), (3, 6813515), (5, 4088109), (15, 1362703), (17, 1202385), (51, 400795), (71, 287895), (85, 240477), (213, 95965), (255, 80159), (355, 57579), (1065, 19193), (1129, 18105), (1207, 16935), (3387, 6035), (3621, 5645)]