51939880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41887}}^1$

素因数の和:41929

約数の個数: 32

約数和(自身を含む): 120637440

約数和(自身を除く): 68697560

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 41887, 83774, 167548, 209435, 335096, 418870, 837740, 1298497, 1675480, 2596994, 5193988, 6492485, 10387976, 12984970, 25969940, 51939880]

約数ペア:

[(1, 51939880), (2, 25969940), (4, 12984970), (5, 10387976), (8, 6492485), (10, 5193988), (20, 2596994), (31, 1675480), (40, 1298497), (62, 837740), (124, 418870), (155, 335096), (248, 209435), (310, 167548), (620, 83774), (1240, 41887)]