81217120

素因数分解:

$2^5\times 5^1\times {\mathrm{507607}}^1$

素因数の和:507622

約数の個数: 24

約数和(自身を含む): 191875824

約数和(自身を除く): 110658704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 507607, 1015214, 2030428, 2538035, 4060856, 5076070, 8121712, 10152140, 16243424, 20304280, 40608560, 81217120]

約数ペア:

[(1, 81217120), (2, 40608560), (4, 20304280), (5, 16243424), (8, 10152140), (10, 8121712), (16, 5076070), (20, 4060856), (32, 2538035), (40, 2030428), (80, 1015214), (160, 507607)]