20137100

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{2549}}^1$

素因数の和:2642

約数の個数: 36

約数和(自身を含む): 44268000

約数和(自身を除く): 24130900

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 158, 316, 395, 790, 1580, 1975, 2549, 3950, 5098, 7900, 10196, 12745, 25490, 50980, 63725, 127450, 201371, 254900, 402742, 805484, 1006855, 2013710, 4027420, 5034275, 10068550, 20137100]

約数ペア:

[(1, 20137100), (2, 10068550), (4, 5034275), (5, 4027420), (10, 2013710), (20, 1006855), (25, 805484), (50, 402742), (79, 254900), (100, 201371), (158, 127450), (316, 63725), (395, 50980), (790, 25490), (1580, 12745), (1975, 10196), (2549, 7900), (3950, 5098)]