66445360

素因数分解:

$2^4\times 5^1\times {\mathrm{830567}}^1$

素因数の和:830580

約数の個数: 20

約数和(自身を含む): 154485648

約数和(自身を除く): 88040288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 830567, 1661134, 3322268, 4152835, 6644536, 8305670, 13289072, 16611340, 33222680, 66445360]

約数ペア:

[(1, 66445360), (2, 33222680), (4, 16611340), (5, 13289072), (8, 8305670), (10, 6644536), (16, 4152835), (20, 3322268), (40, 1661134), (80, 830567)]