20128756496

素因数分解:

$2^4\times {\mathrm{123787}}^1\times {\mathrm{10163}}^1$

素因数の和:133958

約数の個数: 20

約数和(自身を含む): 39003618192

約数和(自身を除く): 18874861696

約数列:

[1, 2, 4, 8, 16, 10163, 20326, 40652, 81304, 123787, 162608, 247574, 495148, 990296, 1980592, 1258047281, 2516094562, 5032189124, 10064378248, 20128756496]

約数ペア:

[(1, 20128756496), (2, 10064378248), (4, 5032189124), (8, 2516094562), (16, 1258047281), (10163, 1980592), (20326, 990296), (40652, 495148), (81304, 247574), (123787, 162608)]