406445360

素因数分解:

$2^4\times 5^1\times {\mathrm{5080567}}^1$

素因数の和:5080580

約数の個数: 20

約数和(自身を含む): 944985648

約数和(自身を除く): 538540288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5080567, 10161134, 20322268, 25402835, 40644536, 50805670, 81289072, 101611340, 203222680, 406445360]

約数ペア:

[(1, 406445360), (2, 203222680), (4, 101611340), (5, 81289072), (8, 50805670), (10, 40644536), (16, 25402835), (20, 20322268), (40, 10161134), (80, 5080567)]