25511000

素因数分解:

$2^3\times 5^3\times {\mathrm{97}}^1\times {\mathrm{263}}^1$

素因数の和:381

約数の個数: 64

約数和(自身を含む): 60540480

約数和(自身を除く): 35029480

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 97, 100, 125, 194, 200, 250, 263, 388, 485, 500, 526, 776, 970, 1000, 1052, 1315, 1940, 2104, 2425, 2630, 3880, 4850, 5260, 6575, 9700, 10520, 12125, 13150, 19400, 24250, 25511, 26300, 32875, 48500, 51022, 52600, 65750, 97000, 102044, 127555, 131500, 204088, 255110, 263000, 510220, 637775, 1020440, 1275550, 2551100, 3188875, 5102200, 6377750, 12755500, 25511000]

約数ペア:

[(1, 25511000), (2, 12755500), (4, 6377750), (5, 5102200), (8, 3188875), (10, 2551100), (20, 1275550), (25, 1020440), (40, 637775), (50, 510220), (97, 263000), (100, 255110), (125, 204088), (194, 131500), (200, 127555), (250, 102044), (263, 97000), (388, 65750), (485, 52600), (500, 51022), (526, 48500), (776, 32875), (970, 26300), (1000, 25511), (1052, 24250), (1315, 19400), (1940, 13150), (2104, 12125), (2425, 10520), (2630, 9700), (3880, 6575), (4850, 5260)]