128897356

素因数分解:

$2^2\times 7^1\times {\mathrm{271}}^1\times {\mathrm{16987}}^1$

素因数の和:17269

約数の個数: 24

約数和(自身を含む): 258761216

約数和(自身を除く): 129863860

約数列:

[1, 2, 4, 7, 14, 28, 271, 542, 1084, 1897, 3794, 7588, 16987, 33974, 67948, 118909, 237818, 475636, 4603477, 9206954, 18413908, 32224339, 64448678, 128897356]

約数ペア:

[(1, 128897356), (2, 64448678), (4, 32224339), (7, 18413908), (14, 9206954), (28, 4603477), (271, 475636), (542, 237818), (1084, 118909), (1897, 67948), (3794, 33974), (7588, 16987)]