2016016720

素因数分解:

$2^4\times 5^1\times {\mathrm{25200209}}^1$

素因数の和:25200222

約数の個数: 20

約数和(自身を含む): 4687239060

約数和(自身を除く): 2671222340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25200209, 50400418, 100800836, 126001045, 201601672, 252002090, 403203344, 504004180, 1008008360, 2016016720]

約数ペア:

[(1, 2016016720), (2, 1008008360), (4, 504004180), (5, 403203344), (8, 252002090), (10, 201601672), (16, 126001045), (20, 100800836), (40, 50400418), (80, 25200209)]