148936640

素因数分解:

$2^6\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1811}}^1$

素因数の和:2085

約数の個数: 56

約数和(自身を含む): 356231952

約数和(自身を除く): 207295312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 257, 320, 514, 1028, 1285, 1811, 2056, 2570, 3622, 4112, 5140, 7244, 8224, 9055, 10280, 14488, 16448, 18110, 20560, 28976, 36220, 41120, 57952, 72440, 82240, 115904, 144880, 289760, 465427, 579520, 930854, 1861708, 2327135, 3723416, 4654270, 7446832, 9308540, 14893664, 18617080, 29787328, 37234160, 74468320, 148936640]

約数ペア:

[(1, 148936640), (2, 74468320), (4, 37234160), (5, 29787328), (8, 18617080), (10, 14893664), (16, 9308540), (20, 7446832), (32, 4654270), (40, 3723416), (64, 2327135), (80, 1861708), (160, 930854), (257, 579520), (320, 465427), (514, 289760), (1028, 144880), (1285, 115904), (1811, 82240), (2056, 72440), (2570, 57952), (3622, 41120), (4112, 36220), (5140, 28976), (7244, 20560), (8224, 18110), (9055, 16448), (10280, 14488)]