51283880

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{9787}}^1$

素因数の和:9929

約数の個数: 32

約数和(自身を含む): 116281440

約数和(自身を除く): 64997560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 9787, 19574, 39148, 48935, 78296, 97870, 195740, 391480, 1282097, 2564194, 5128388, 6410485, 10256776, 12820970, 25641940, 51283880]

約数ペア:

[(1, 51283880), (2, 25641940), (4, 12820970), (5, 10256776), (8, 6410485), (10, 5128388), (20, 2564194), (40, 1282097), (131, 391480), (262, 195740), (524, 97870), (655, 78296), (1048, 48935), (1310, 39148), (2620, 19574), (5240, 9787)]