25751980

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{9829}}^1$

素因数の和:9969

約数の個数: 24

約数和(自身を含む): 54497520

約数和(自身を除く): 28745540

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 9829, 19658, 39316, 49145, 98290, 196580, 1287599, 2575198, 5150396, 6437995, 12875990, 25751980]

約数ペア:

[(1, 25751980), (2, 12875990), (4, 6437995), (5, 5150396), (10, 2575198), (20, 1287599), (131, 196580), (262, 98290), (524, 49145), (655, 39316), (1310, 19658), (2620, 9829)]