81424480

素因数分解:

$2^5\times 5^1\times {\mathrm{508903}}^1$

素因数の和:508918

約数の個数: 24

約数和(自身を含む): 192365712

約数和(自身を除く): 110941232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 508903, 1017806, 2035612, 2544515, 4071224, 5089030, 8142448, 10178060, 16284896, 20356120, 40712240, 81424480]

約数ペア:

[(1, 81424480), (2, 40712240), (4, 20356120), (5, 16284896), (8, 10178060), (10, 8142448), (16, 5089030), (20, 4071224), (32, 2544515), (40, 2035612), (80, 1017806), (160, 508903)]