128545545

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{151}}^1$

素因数の和:310

約数の個数: 64

約数和(自身を含む): 227635200

約数和(自身を除く): 99089655

約数列:

[1, 3, 5, 15, 19, 29, 57, 87, 95, 103, 145, 151, 285, 309, 435, 453, 515, 551, 755, 1545, 1653, 1957, 2265, 2755, 2869, 2987, 4379, 5871, 8265, 8607, 8961, 9785, 13137, 14345, 14935, 15553, 21895, 29355, 43035, 44805, 46659, 56753, 65685, 77765, 83201, 170259, 233295, 249603, 283765, 295507, 416005, 451037, 851295, 886521, 1248015, 1353111, 1477535, 2255185, 4432605, 6765555, 8569703, 25709109, 42848515, 128545545]

約数ペア:

[(1, 128545545), (3, 42848515), (5, 25709109), (15, 8569703), (19, 6765555), (29, 4432605), (57, 2255185), (87, 1477535), (95, 1353111), (103, 1248015), (145, 886521), (151, 851295), (285, 451037), (309, 416005), (435, 295507), (453, 283765), (515, 249603), (551, 233295), (755, 170259), (1545, 83201), (1653, 77765), (1957, 65685), (2265, 56753), (2755, 46659), (2869, 44805), (2987, 43035), (4379, 29355), (5871, 21895), (8265, 15553), (8607, 14935), (8961, 14345), (9785, 13137)]