20137000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1549}}^1$

素因数の和:1583

約数の個数: 64

約数和(自身を含む): 50778000

約数和(自身を除く): 30641000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 325, 500, 520, 650, 1000, 1300, 1549, 1625, 2600, 3098, 3250, 6196, 6500, 7745, 12392, 13000, 15490, 20137, 30980, 38725, 40274, 61960, 77450, 80548, 100685, 154900, 161096, 193625, 201370, 309800, 387250, 402740, 503425, 774500, 805480, 1006850, 1549000, 2013700, 2517125, 4027400, 5034250, 10068500, 20137000]

約数ペア:

[(1, 20137000), (2, 10068500), (4, 5034250), (5, 4027400), (8, 2517125), (10, 2013700), (13, 1549000), (20, 1006850), (25, 805480), (26, 774500), (40, 503425), (50, 402740), (52, 387250), (65, 309800), (100, 201370), (104, 193625), (125, 161096), (130, 154900), (200, 100685), (250, 80548), (260, 77450), (325, 61960), (500, 40274), (520, 38725), (650, 30980), (1000, 20137), (1300, 15490), (1549, 13000), (1625, 12392), (2600, 7745), (3098, 6500), (3250, 6196)]