51351800

素因数分解:

$2^3\times 5^2\times {\mathrm{97}}^1\times {\mathrm{2647}}^1$

素因数の和:2760

約数の個数: 48

約数和(自身を含む): 120669360

約数和(自身を除く): 69317560

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 97, 100, 194, 200, 388, 485, 776, 970, 1940, 2425, 2647, 3880, 4850, 5294, 9700, 10588, 13235, 19400, 21176, 26470, 52940, 66175, 105880, 132350, 256759, 264700, 513518, 529400, 1027036, 1283795, 2054072, 2567590, 5135180, 6418975, 10270360, 12837950, 25675900, 51351800]

約数ペア:

[(1, 51351800), (2, 25675900), (4, 12837950), (5, 10270360), (8, 6418975), (10, 5135180), (20, 2567590), (25, 2054072), (40, 1283795), (50, 1027036), (97, 529400), (100, 513518), (194, 264700), (200, 256759), (388, 132350), (485, 105880), (776, 66175), (970, 52940), (1940, 26470), (2425, 21176), (2647, 19400), (3880, 13235), (4850, 10588), (5294, 9700)]