64704004

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{1663}}^1$

素因数の和:1875

約数の個数: 24

約数和(自身を含む): 115734528

約数和(自身を除く): 51030524

約数列:

[1, 2, 4, 71, 137, 142, 274, 284, 548, 1663, 3326, 6652, 9727, 19454, 38908, 118073, 227831, 236146, 455662, 472292, 911324, 16176001, 32352002, 64704004]

約数ペア:

[(1, 64704004), (2, 32352002), (4, 16176001), (71, 911324), (137, 472292), (142, 455662), (274, 236146), (284, 227831), (548, 118073), (1663, 38908), (3326, 19454), (6652, 9727)]