840368

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{991}}^1$

素因数の和:1052

約数の個数: 20

約数和(自身を含む): 1660608

約数和(自身を除く): 820240

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 991, 1982, 3964, 7928, 15856, 52523, 105046, 210092, 420184, 840368]

約数ペア:

[(1, 840368), (2, 420184), (4, 210092), (8, 105046), (16, 52523), (53, 15856), (106, 7928), (212, 3964), (424, 1982), (848, 991)]