7972000

素因数分解:

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

素因数の和:2018

約数の個数: 48

約数和(自身を含む): 19597032

約数和(自身を除く): 11625032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 1993, 2000, 3986, 4000, 7972, 9965, 15944, 19930, 31888, 39860, 49825, 63776, 79720, 99650, 159440, 199300, 249125, 318880, 398600, 498250, 797200, 996500, 1594400, 1993000, 3986000, 7972000]

約数ペア:

[(1, 7972000), (2, 3986000), (4, 1993000), (5, 1594400), (8, 996500), (10, 797200), (16, 498250), (20, 398600), (25, 318880), (32, 249125), (40, 199300), (50, 159440), (80, 99650), (100, 79720), (125, 63776), (160, 49825), (200, 39860), (250, 31888), (400, 19930), (500, 15944), (800, 9965), (1000, 7972), (1993, 4000), (2000, 3986)]