834858040

素因数分解:

$2^3\times 5^1\times {\mathrm{991}}^1\times {\mathrm{21061}}^1$

素因数の和:22063

約数の個数: 32

約数和(自身を含む): 1880415360

約数和(自身を除く): 1045557320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 991, 1982, 3964, 4955, 7928, 9910, 19820, 21061, 39640, 42122, 84244, 105305, 168488, 210610, 421220, 842440, 20871451, 41742902, 83485804, 104357255, 166971608, 208714510, 417429020, 834858040]

約数ペア:

[(1, 834858040), (2, 417429020), (4, 208714510), (5, 166971608), (8, 104357255), (10, 83485804), (20, 41742902), (40, 20871451), (991, 842440), (1982, 421220), (3964, 210610), (4955, 168488), (7928, 105305), (9910, 84244), (19820, 42122), (21061, 39640)]