25090660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{647}}^1$

素因数の和:940

約数の個数: 48

約数和(自身を含む): 60528384

約数和(自身を除く): 35437724

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 277, 554, 647, 1108, 1294, 1385, 1939, 2588, 2770, 3235, 3878, 4529, 5540, 6470, 7756, 9058, 9695, 12940, 18116, 19390, 22645, 38780, 45290, 90580, 179219, 358438, 716876, 896095, 1254533, 1792190, 2509066, 3584380, 5018132, 6272665, 12545330, 25090660]

約数ペア:

[(1, 25090660), (2, 12545330), (4, 6272665), (5, 5018132), (7, 3584380), (10, 2509066), (14, 1792190), (20, 1254533), (28, 896095), (35, 716876), (70, 358438), (140, 179219), (277, 90580), (554, 45290), (647, 38780), (1108, 22645), (1294, 19390), (1385, 18116), (1939, 12940), (2588, 9695), (2770, 9058), (3235, 7756), (3878, 6470), (4529, 5540)]