20199061988

素因数分解:

$2^2\times 7^1\times {\mathrm{17959}}^1\times {\mathrm{40169}}^1$

素因数の和:58139

約数の個数: 24

約数和(自身を含む): 40401379200

約数和(自身を除く): 20202317212

約数列:

[1, 2, 4, 7, 14, 28, 17959, 35918, 40169, 71836, 80338, 125713, 160676, 251426, 281183, 502852, 562366, 1124732, 721395071, 1442790142, 2885580284, 5049765497, 10099530994, 20199061988]

約数ペア:

[(1, 20199061988), (2, 10099530994), (4, 5049765497), (7, 2885580284), (14, 1442790142), (28, 721395071), (17959, 1124732), (35918, 562366), (40169, 502852), (71836, 281183), (80338, 251426), (125713, 160676)]