25534720

素因数分解:

$2^8\times 5^1\times {\mathrm{19949}}^1$

素因数の和:19970

約数の個数: 36

約数和(自身を含む): 61166700

約数和(自身を除く): 35631980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 19949, 39898, 79796, 99745, 159592, 199490, 319184, 398980, 638368, 797960, 1276736, 1595920, 2553472, 3191840, 5106944, 6383680, 12767360, 25534720]

約数ペア:

[(1, 25534720), (2, 12767360), (4, 6383680), (5, 5106944), (8, 3191840), (10, 2553472), (16, 1595920), (20, 1276736), (32, 797960), (40, 638368), (64, 398980), (80, 319184), (128, 199490), (160, 159592), (256, 99745), (320, 79796), (640, 39898), (1280, 19949)]