15994400

素因数分解:

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

素因数の和:20013

約数の個数: 36

約数和(自身を含む): 39048282

約数和(自身を除く): 23053882

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 19993, 39986, 79972, 99965, 159944, 199930, 319888, 399860, 499825, 639776, 799720, 999650, 1599440, 1999300, 3198880, 3998600, 7997200, 15994400]

約数ペア:

[(1, 15994400), (2, 7997200), (4, 3998600), (5, 3198880), (8, 1999300), (10, 1599440), (16, 999650), (20, 799720), (25, 639776), (32, 499825), (40, 399860), (50, 319888), (80, 199930), (100, 159944), (160, 99965), (200, 79972), (400, 39986), (800, 19993)]