688700

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:182

約数の個数: 36

約数和(自身を含む): 1531152

約数和(自身を除く): 842452

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 97, 100, 142, 194, 284, 355, 388, 485, 710, 970, 1420, 1775, 1940, 2425, 3550, 4850, 6887, 7100, 9700, 13774, 27548, 34435, 68870, 137740, 172175, 344350, 688700]

約数ペア:

[(1, 688700), (2, 344350), (4, 172175), (5, 137740), (10, 68870), (20, 34435), (25, 27548), (50, 13774), (71, 9700), (97, 7100), (100, 6887), (142, 4850), (194, 3550), (284, 2425), (355, 1940), (388, 1775), (485, 1420), (710, 970)]