31720208

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{152501}}^1$

素因数の和:152522

約数の個数: 20

約数和(自身を含む): 66185868

約数和(自身を除く): 34465660

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 152501, 305002, 610004, 1220008, 1982513, 2440016, 3965026, 7930052, 15860104, 31720208]

約数ペア:

[(1, 31720208), (2, 15860104), (4, 7930052), (8, 3965026), (13, 2440016), (16, 1982513), (26, 1220008), (52, 610004), (104, 305002), (208, 152501)]