20781617725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1843159}}^1$

素因数の和:1843221

約数の個数: 24

約数和(自身を含む): 28797531840

約数和(自身を除く): 8015914115

約数列:

[1, 5, 11, 25, 41, 55, 205, 275, 451, 1025, 2255, 11275, 1843159, 9215795, 20274749, 46078975, 75569519, 101373745, 377847595, 506868725, 831264709, 1889237975, 4156323545, 20781617725]

約数ペア:

[(1, 20781617725), (5, 4156323545), (11, 1889237975), (25, 831264709), (41, 506868725), (55, 377847595), (205, 101373745), (275, 75569519), (451, 46078975), (1025, 20274749), (2255, 9215795), (11275, 1843159)]