80255920

素因数分解:

$2^4\times 5^1\times {\mathrm{1003199}}^1$

素因数の和:1003212

約数の個数: 20

約数和(自身を含む): 186595200

約数和(自身を除く): 106339280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1003199, 2006398, 4012796, 5015995, 8025592, 10031990, 16051184, 20063980, 40127960, 80255920]

約数ペア:

[(1, 80255920), (2, 40127960), (4, 20063980), (5, 16051184), (8, 10031990), (10, 8025592), (16, 5015995), (20, 4012796), (40, 2006398), (80, 1003199)]