205804815

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{4297}}^1$

素因数の和:4439

約数の個数: 32

約数和(自身を含む): 343289856

約数和(自身を除く): 137485041

約数列:

[1, 3, 5, 15, 31, 93, 103, 155, 309, 465, 515, 1545, 3193, 4297, 9579, 12891, 15965, 21485, 47895, 64455, 133207, 399621, 442591, 666035, 1327773, 1998105, 2212955, 6638865, 13720321, 41160963, 68601605, 205804815]

約数ペア:

[(1, 205804815), (3, 68601605), (5, 41160963), (15, 13720321), (31, 6638865), (93, 2212955), (103, 1998105), (155, 1327773), (309, 666035), (465, 442591), (515, 399621), (1545, 133207), (3193, 64455), (4297, 47895), (9579, 21485), (12891, 15965)]