639913984

素因数分解:

$2^{12}\times {\mathrm{156229}}^1$

素因数の和:156253

約数の個数: 26

約数和(自身を含む): 1279679930

約数和(自身を除く): 639765946

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 156229, 312458, 624916, 1249832, 2499664, 4999328, 9998656, 19997312, 39994624, 79989248, 159978496, 319956992, 639913984]

約数ペア:

[(1, 639913984), (2, 319956992), (4, 159978496), (8, 79989248), (16, 39994624), (32, 19997312), (64, 9998656), (128, 4999328), (256, 2499664), (512, 1249832), (1024, 624916), (2048, 312458), (4096, 156229)]