7997200

素因数分解:

$2^4\times 5^2\times {\mathrm{19993}}^1$

素因数の和:20011

約数の個数: 30

約数和(自身を含む): 19214234

約数和(自身を除く): 11217034

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 19993, 39986, 79972, 99965, 159944, 199930, 319888, 399860, 499825, 799720, 999650, 1599440, 1999300, 3998600, 7997200]

約数ペア:

[(1, 7997200), (2, 3998600), (4, 1999300), (5, 1599440), (8, 999650), (10, 799720), (16, 499825), (20, 399860), (25, 319888), (40, 199930), (50, 159944), (80, 99965), (100, 79972), (200, 39986), (400, 19993)]