257486528

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{309479}}^1$

素因数の和:309504

約数の個数: 28

約数和(自身を含む): 550255440

約数和(自身を除く): 292768912

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 416, 832, 309479, 618958, 1237916, 2475832, 4023227, 4951664, 8046454, 9903328, 16092908, 19806656, 32185816, 64371632, 128743264, 257486528]

約数ペア:

[(1, 257486528), (2, 128743264), (4, 64371632), (8, 32185816), (13, 19806656), (16, 16092908), (26, 9903328), (32, 8046454), (52, 4951664), (64, 4023227), (104, 2475832), (208, 1237916), (416, 618958), (832, 309479)]