20138000

素因数分解:

$2^4\times 5^3\times {\mathrm{10069}}^1$

素因数の和:10092

約数の個数: 40

約数和(自身を含む): 48698520

約数和(自身を除く): 28560520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 10069, 20138, 40276, 50345, 80552, 100690, 161104, 201380, 251725, 402760, 503450, 805520, 1006900, 1258625, 2013800, 2517250, 4027600, 5034500, 10069000, 20138000]

約数ペア:

[(1, 20138000), (2, 10069000), (4, 5034500), (5, 4027600), (8, 2517250), (10, 2013800), (16, 1258625), (20, 1006900), (25, 805520), (40, 503450), (50, 402760), (80, 251725), (100, 201380), (125, 161104), (200, 100690), (250, 80552), (400, 50345), (500, 40276), (1000, 20138), (2000, 10069)]