278739968

素因数分解:

$2^{10}\times {\mathrm{13}}^1\times {\mathrm{20939}}^1$

素因数の和:20972

約数の個数: 44

約数和(自身を含む): 600098520

約数和(自身を除く): 321358552

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1024, 1664, 3328, 6656, 13312, 20939, 41878, 83756, 167512, 272207, 335024, 544414, 670048, 1088828, 1340096, 2177656, 2680192, 4355312, 5360384, 8710624, 10720768, 17421248, 21441536, 34842496, 69684992, 139369984, 278739968]

約数ペア:

[(1, 278739968), (2, 139369984), (4, 69684992), (8, 34842496), (13, 21441536), (16, 17421248), (26, 10720768), (32, 8710624), (52, 5360384), (64, 4355312), (104, 2680192), (128, 2177656), (208, 1340096), (256, 1088828), (416, 670048), (512, 544414), (832, 335024), (1024, 272207), (1664, 167512), (3328, 83756), (6656, 41878), (13312, 20939)]