398600

素因数分解:

$2^3\times 5^2\times {\mathrm{1993}}^1$

素因数の和:2009

約数の個数: 24

約数和(自身を含む): 927210

約数和(自身を除く): 528610

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 1993, 3986, 7972, 9965, 15944, 19930, 39860, 49825, 79720, 99650, 199300, 398600]

約数ペア:

[(1, 398600), (2, 199300), (4, 99650), (5, 79720), (8, 49825), (10, 39860), (20, 19930), (25, 15944), (40, 9965), (50, 7972), (100, 3986), (200, 1993)]