20127839990

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{661}}^1\times {\mathrm{49919}}^1$

素因数の和:50648

約数の個数: 32

約数和(自身を含む): 36880496640

約数和(自身を除く): 16752656650

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 661, 1322, 3305, 6610, 40321, 49919, 80642, 99838, 201605, 249595, 403210, 499190, 3045059, 6090118, 15225295, 30450590, 32996459, 65992918, 164982295, 329964590, 2012783999, 4025567998, 10063919995, 20127839990]

約数ペア:

[(1, 20127839990), (2, 10063919995), (5, 4025567998), (10, 2012783999), (61, 329964590), (122, 164982295), (305, 65992918), (610, 32996459), (661, 30450590), (1322, 15225295), (3305, 6090118), (6610, 3045059), (40321, 499190), (49919, 403210), (80642, 249595), (99838, 201605)]