1998919565575

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{97866319}}^1$

素因数の和:97866391

約数の個数: 24

約数和(自身を含む): 2669793209600

約数和(自身を除く): 670873644025

約数列:

[1, 5, 19, 25, 43, 95, 215, 475, 817, 1075, 4085, 20425, 97866319, 489331595, 1859460061, 2446657975, 4208251717, 9297300305, 21041258585, 46486501525, 79956782623, 105206292925, 399783913115, 1998919565575]

約数ペア:

[(1, 1998919565575), (5, 399783913115), (19, 105206292925), (25, 79956782623), (43, 46486501525), (95, 21041258585), (215, 9297300305), (475, 4208251717), (817, 2446657975), (1075, 1859460061), (4085, 489331595), (20425, 97866319)]