8490700

素因数分解:

$2^2\times 5^2\times {\mathrm{197}}^1\times {\mathrm{431}}^1$

素因数の和:642

約数の個数: 36

約数和(自身を含む): 18561312

約数和(自身を除く): 10070612

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 197, 394, 431, 788, 862, 985, 1724, 1970, 2155, 3940, 4310, 4925, 8620, 9850, 10775, 19700, 21550, 43100, 84907, 169814, 339628, 424535, 849070, 1698140, 2122675, 4245350, 8490700]

約数ペア:

[(1, 8490700), (2, 4245350), (4, 2122675), (5, 1698140), (10, 849070), (20, 424535), (25, 339628), (50, 169814), (100, 84907), (197, 43100), (394, 21550), (431, 19700), (788, 10775), (862, 9850), (985, 8620), (1724, 4925), (1970, 4310), (2155, 3940)]