7988800

素因数分解:

$2^6\times 5^2\times {\mathrm{4993}}^1$

素因数の和:5015

約数の個数: 42

約数和(自身を含む): 19661378

約数和(自身を除く): 11672578

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 4993, 9986, 19972, 24965, 39944, 49930, 79888, 99860, 124825, 159776, 199720, 249650, 319552, 399440, 499300, 798880, 998600, 1597760, 1997200, 3994400, 7988800]

約数ペア:

[(1, 7988800), (2, 3994400), (4, 1997200), (5, 1597760), (8, 998600), (10, 798880), (16, 499300), (20, 399440), (25, 319552), (32, 249650), (40, 199720), (50, 159776), (64, 124825), (80, 99860), (100, 79888), (160, 49930), (200, 39944), (320, 24965), (400, 19972), (800, 9986), (1600, 4993)]