217263440

素因数分解:

$2^4\times 5^1\times {\mathrm{2715793}}^1$

素因数の和:2715806

約数の個数: 20

約数和(自身を含む): 505137684

約数和(自身を除く): 287874244

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2715793, 5431586, 10863172, 13578965, 21726344, 27157930, 43452688, 54315860, 108631720, 217263440]

約数ペア:

[(1, 217263440), (2, 108631720), (4, 54315860), (5, 43452688), (8, 27157930), (10, 21726344), (16, 13578965), (20, 10863172), (40, 5431586), (80, 2715793)]