405992

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{2671}}^1$

素因数の和:2696

約数の個数: 16

約数和(自身を含む): 801600

約数和(自身を除く): 395608

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 2671, 5342, 10684, 21368, 50749, 101498, 202996, 405992]

約数ペア:

[(1, 405992), (2, 202996), (4, 101498), (8, 50749), (19, 21368), (38, 10684), (76, 5342), (152, 2671)]