19868000

素因数分解:

$2^5\times 5^3\times {\mathrm{4967}}^1$

素因数の和:4992

約数の個数: 48

約数和(自身を含む): 48825504

約数和(自身を除く): 28957504

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, 2000, 4000, 4967, 9934, 19868, 24835, 39736, 49670, 79472, 99340, 124175, 158944, 198680, 248350, 397360, 496700, 620875, 794720, 993400, 1241750, 1986800, 2483500, 3973600, 4967000, 9934000, 19868000]

約数ペア:

[(1, 19868000), (2, 9934000), (4, 4967000), (5, 3973600), (8, 2483500), (10, 1986800), (16, 1241750), (20, 993400), (25, 794720), (32, 620875), (40, 496700), (50, 397360), (80, 248350), (100, 198680), (125, 158944), (160, 124175), (200, 99340), (250, 79472), (400, 49670), (500, 39736), (800, 24835), (1000, 19868), (2000, 9934), (4000, 4967)]