18256570

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1$

素因数の和:450

約数の個数: 32

約数和(自身を含む): 33806160

約数和(自身を除く): 15549590

約数列:

[1, 2, 5, 10, 73, 89, 146, 178, 281, 365, 445, 562, 730, 890, 1405, 2810, 6497, 12994, 20513, 25009, 32485, 41026, 50018, 64970, 102565, 125045, 205130, 250090, 1825657, 3651314, 9128285, 18256570]

約数ペア:

[(1, 18256570), (2, 9128285), (5, 3651314), (10, 1825657), (73, 250090), (89, 205130), (146, 125045), (178, 102565), (281, 64970), (365, 50018), (445, 41026), (562, 32485), (730, 25009), (890, 20513), (1405, 12994), (2810, 6497)]