180978868

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{208501}}^1$

素因数の和:208543

約数の個数: 24

約数和(自身を含む): 373635584

約数和(自身を除く): 192656716

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 208501, 417002, 834004, 1459507, 2919014, 5838028, 6463531, 12927062, 25854124, 45244717, 90489434, 180978868]

約数ペア:

[(1, 180978868), (2, 90489434), (4, 45244717), (7, 25854124), (14, 12927062), (28, 6463531), (31, 5838028), (62, 2919014), (124, 1459507), (217, 834004), (434, 417002), (868, 208501)]