128238425

素因数分解:

$5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{10321}}^1$

素因数の和:10409

約数の個数: 24

約数和(自身を含む): 184309632

約数和(自身を除く): 56071207

約数列:

[1, 5, 7, 25, 35, 71, 175, 355, 497, 1775, 2485, 10321, 12425, 51605, 72247, 258025, 361235, 732791, 1806175, 3663955, 5129537, 18319775, 25647685, 128238425]

約数ペア:

[(1, 128238425), (5, 25647685), (7, 18319775), (25, 5129537), (35, 3663955), (71, 1806175), (175, 732791), (355, 361235), (497, 258025), (1775, 72247), (2485, 51605), (10321, 12425)]