400526

素因数分解:

$2^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:144

約数の個数: 24

約数和(自身を含む): 720936

約数和(自身を除く): 320410

約数列:

[1, 2, 7, 14, 49, 61, 67, 98, 122, 134, 427, 469, 854, 938, 2989, 3283, 4087, 5978, 6566, 8174, 28609, 57218, 200263, 400526]

約数ペア:

[(1, 400526), (2, 200263), (7, 57218), (14, 28609), (49, 8174), (61, 6566), (67, 5978), (98, 4087), (122, 3283), (134, 2989), (427, 938), (469, 854)]