25200040

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{9403}}^1$

素因数の和:9481

約数の個数: 32

約数和(自身を含む): 57552480

約数和(自身を除く): 32352440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 9403, 18806, 37612, 47015, 75224, 94030, 188060, 376120, 630001, 1260002, 2520004, 3150005, 5040008, 6300010, 12600020, 25200040]

約数ペア:

[(1, 25200040), (2, 12600020), (4, 6300010), (5, 5040008), (8, 3150005), (10, 2520004), (20, 1260002), (40, 630001), (67, 376120), (134, 188060), (268, 94030), (335, 75224), (536, 47015), (670, 37612), (1340, 18806), (2680, 9403)]