81172860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1352881}}^1$

素因数の和:1352893

約数の個数: 24

約数和(自身を含む): 227284176

約数和(自身を除く): 146111316

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1352881, 2705762, 4058643, 5411524, 6764405, 8117286, 13528810, 16234572, 20293215, 27057620, 40586430, 81172860]

約数ペア:

[(1, 81172860), (2, 40586430), (3, 27057620), (4, 20293215), (5, 16234572), (6, 13528810), (10, 8117286), (12, 6764405), (15, 5411524), (20, 4058643), (30, 2705762), (60, 1352881)]