28007680

素因数分解:

$2^8\times 5^1\times {\mathrm{21881}}^1$

素因数の和:21902

約数の個数: 36

約数和(自身を含む): 67090212

約数和(自身を除く): 39082532

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 21881, 43762, 87524, 109405, 175048, 218810, 350096, 437620, 700192, 875240, 1400384, 1750480, 2800768, 3500960, 5601536, 7001920, 14003840, 28007680]

約数ペア:

[(1, 28007680), (2, 14003840), (4, 7001920), (5, 5601536), (8, 3500960), (10, 2800768), (16, 1750480), (20, 1400384), (32, 875240), (40, 700192), (64, 437620), (80, 350096), (128, 218810), (160, 175048), (256, 109405), (320, 87524), (640, 43762), (1280, 21881)]