25251880

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{4021}}^1$

素因数の和:4189

約数の個数: 32

約数和(自身を含む): 57192840

約数和(自身を除く): 31940960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 4021, 6280, 8042, 16084, 20105, 32168, 40210, 80420, 160840, 631297, 1262594, 2525188, 3156485, 5050376, 6312970, 12625940, 25251880]

約数ペア:

[(1, 25251880), (2, 12625940), (4, 6312970), (5, 5050376), (8, 3156485), (10, 2525188), (20, 1262594), (40, 631297), (157, 160840), (314, 80420), (628, 40210), (785, 32168), (1256, 20105), (1570, 16084), (3140, 8042), (4021, 6280)]