40405072

素因数分解:

$2^4\times {\mathrm{397}}^1\times {\mathrm{6361}}^1$

素因数の和:6766

約数の個数: 20

約数和(自身を含む): 78494356

約数和(自身を除く): 38089284

約数列:

[1, 2, 4, 8, 16, 397, 794, 1588, 3176, 6352, 6361, 12722, 25444, 50888, 101776, 2525317, 5050634, 10101268, 20202536, 40405072]

約数ペア:

[(1, 40405072), (2, 20202536), (4, 10101268), (8, 5050634), (16, 2525317), (397, 101776), (794, 50888), (1588, 25444), (3176, 12722), (6352, 6361)]