20280212368

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{97501021}}^1$

素因数の和:97501042

約数の個数: 20

約数和(自身を含む): 42315443548

約数和(自身を除く): 22035231180

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 97501021, 195002042, 390004084, 780008168, 1267513273, 1560016336, 2535026546, 5070053092, 10140106184, 20280212368]

約数ペア:

[(1, 20280212368), (2, 10140106184), (4, 5070053092), (8, 2535026546), (13, 1560016336), (16, 1267513273), (26, 780008168), (52, 390004084), (104, 195002042), (208, 97501021)]