51704720

素因数分解:

$2^4\times 5^1\times {\mathrm{646309}}^1$

素因数の和:646322

約数の個数: 20

約数和(自身を含む): 120213660

約数和(自身を除く): 68508940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 646309, 1292618, 2585236, 3231545, 5170472, 6463090, 10340944, 12926180, 25852360, 51704720]

約数ペア:

[(1, 51704720), (2, 25852360), (4, 12926180), (5, 10340944), (8, 6463090), (10, 5170472), (16, 3231545), (20, 2585236), (40, 1292618), (80, 646309)]