19481720

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{1721}}^1$

素因数の和:2015

約数の個数: 32

約数和(自身を含む): 44014320

約数和(自身を除く): 24532600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 1721, 2264, 2830, 3442, 5660, 6884, 8605, 11320, 13768, 17210, 34420, 68840, 487043, 974086, 1948172, 2435215, 3896344, 4870430, 9740860, 19481720]

約数ペア:

[(1, 19481720), (2, 9740860), (4, 4870430), (5, 3896344), (8, 2435215), (10, 1948172), (20, 974086), (40, 487043), (283, 68840), (566, 34420), (1132, 17210), (1415, 13768), (1721, 11320), (2264, 8605), (2830, 6884), (3442, 5660)]