257516

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{541}}^1$

素因数の和:569

約数の個数: 24

約数和(自身を含む): 546336

約数和(自身を除く): 288820

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 541, 1082, 2164, 3787, 7574, 9197, 15148, 18394, 36788, 64379, 128758, 257516]

約数ペア:

[(1, 257516), (2, 128758), (4, 64379), (7, 36788), (14, 18394), (17, 15148), (28, 9197), (34, 7574), (68, 3787), (119, 2164), (238, 1082), (476, 541)]