3898000

素因数分解:

$2^4\times 5^3\times {\mathrm{1949}}^1$

素因数の和:1972

約数の個数: 40

約数和(自身を含む): 9430200

約数和(自身を除く): 5532200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 1949, 2000, 3898, 7796, 9745, 15592, 19490, 31184, 38980, 48725, 77960, 97450, 155920, 194900, 243625, 389800, 487250, 779600, 974500, 1949000, 3898000]

約数ペア:

[(1, 3898000), (2, 1949000), (4, 974500), (5, 779600), (8, 487250), (10, 389800), (16, 243625), (20, 194900), (25, 155920), (40, 97450), (50, 77960), (80, 48725), (100, 38980), (125, 31184), (200, 19490), (250, 15592), (400, 9745), (500, 7796), (1000, 3898), (1949, 2000)]