64013480

素因数分解:

$2^3\times 5^1\times {\mathrm{1600337}}^1$

素因数の和:1600348

約数の個数: 16

約数和(自身を含む): 144030420

約数和(自身を除く): 80016940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1600337, 3200674, 6401348, 8001685, 12802696, 16003370, 32006740, 64013480]

約数ペア:

[(1, 64013480), (2, 32006740), (4, 16003370), (5, 12802696), (8, 8001685), (10, 6401348), (20, 3200674), (40, 1600337)]