40384016

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{61561}}^1$

素因数の和:61610

約数の個数: 20

約数和(自身を含む): 80153724

約数和(自身を除く): 39769708

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 61561, 123122, 246244, 492488, 984976, 2524001, 5048002, 10096004, 20192008, 40384016]

約数ペア:

[(1, 40384016), (2, 20192008), (4, 10096004), (8, 5048002), (16, 2524001), (41, 984976), (82, 492488), (164, 246244), (328, 123122), (656, 61561)]