81394000

素因数分解:

$2^4\times 5^3\times {\mathrm{40697}}^1$

素因数の和:40720

約数の個数: 40

約数和(自身を含む): 196815528

約数和(自身を除く): 115421528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 40697, 81394, 162788, 203485, 325576, 406970, 651152, 813940, 1017425, 1627880, 2034850, 3255760, 4069700, 5087125, 8139400, 10174250, 16278800, 20348500, 40697000, 81394000]

約数ペア:

[(1, 81394000), (2, 40697000), (4, 20348500), (5, 16278800), (8, 10174250), (10, 8139400), (16, 5087125), (20, 4069700), (25, 3255760), (40, 2034850), (50, 1627880), (80, 1017425), (100, 813940), (125, 651152), (200, 406970), (250, 325576), (400, 203485), (500, 162788), (1000, 81394), (2000, 40697)]