20275984

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{40879}}^1$

素因数の和:40918

約数の個数: 20

約数和(自身を含む): 40552960

約数和(自身を除く): 20276976

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 40879, 81758, 163516, 327032, 654064, 1267249, 2534498, 5068996, 10137992, 20275984]

約数ペア:

[(1, 20275984), (2, 10137992), (4, 5068996), (8, 2534498), (16, 1267249), (31, 654064), (62, 327032), (124, 163516), (248, 81758), (496, 40879)]