40852720

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1987}}^1$

素因数の和:2257

約数の個数: 40

約数和(自身を含む): 95400144

約数和(自身を除く): 54547424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 1028, 1285, 1987, 2056, 2570, 3974, 4112, 5140, 7948, 9935, 10280, 15896, 19870, 20560, 31792, 39740, 79480, 158960, 510659, 1021318, 2042636, 2553295, 4085272, 5106590, 8170544, 10213180, 20426360, 40852720]

約数ペア:

[(1, 40852720), (2, 20426360), (4, 10213180), (5, 8170544), (8, 5106590), (10, 4085272), (16, 2553295), (20, 2042636), (40, 1021318), (80, 510659), (257, 158960), (514, 79480), (1028, 39740), (1285, 31792), (1987, 20560), (2056, 19870), (2570, 15896), (3974, 10280), (4112, 9935), (5140, 7948)]