78943900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{16111}}^1$

素因数の和:16139

約数の個数: 54

約数和(自身を含む): 199289328

約数和(自身を除く): 120345428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4900, 16111, 32222, 64444, 80555, 112777, 161110, 225554, 322220, 402775, 451108, 563885, 789439, 805550, 1127770, 1578878, 1611100, 2255540, 2819425, 3157756, 3947195, 5638850, 7894390, 11277700, 15788780, 19735975, 39471950, 78943900]

約数ペア:

[(1, 78943900), (2, 39471950), (4, 19735975), (5, 15788780), (7, 11277700), (10, 7894390), (14, 5638850), (20, 3947195), (25, 3157756), (28, 2819425), (35, 2255540), (49, 1611100), (50, 1578878), (70, 1127770), (98, 805550), (100, 789439), (140, 563885), (175, 451108), (196, 402775), (245, 322220), (350, 225554), (490, 161110), (700, 112777), (980, 80555), (1225, 64444), (2450, 32222), (4900, 16111)]