20078261504

素因数分解:

$2^8\times 7^1\times {\mathrm{883}}^1\times {\mathrm{12689}}^1$

素因数の和:13595

約数の個数: 72

約数和(自身を含む): 45859020480

約数和(自身を除く): 25780758976

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 883, 896, 1766, 1792, 3532, 6181, 7064, 12362, 12689, 14128, 24724, 25378, 28256, 49448, 50756, 56512, 88823, 98896, 101512, 113024, 177646, 197792, 203024, 226048, 355292, 395584, 406048, 710584, 791168, 812096, 1421168, 1582336, 1624192, 2842336, 3248384, 5684672, 11204387, 11369344, 22408774, 22738688, 44817548, 78430709, 89635096, 156861418, 179270192, 313722836, 358540384, 627445672, 717080768, 1254891344, 1434161536, 2509782688, 2868323072, 5019565376, 10039130752, 20078261504]

約数ペア:

[(1, 20078261504), (2, 10039130752), (4, 5019565376), (7, 2868323072), (8, 2509782688), (14, 1434161536), (16, 1254891344), (28, 717080768), (32, 627445672), (56, 358540384), (64, 313722836), (112, 179270192), (128, 156861418), (224, 89635096), (256, 78430709), (448, 44817548), (883, 22738688), (896, 22408774), (1766, 11369344), (1792, 11204387), (3532, 5684672), (6181, 3248384), (7064, 2842336), (12362, 1624192), (12689, 1582336), (14128, 1421168), (24724, 812096), (25378, 791168), (28256, 710584), (49448, 406048), (50756, 395584), (56512, 355292), (88823, 226048), (98896, 203024), (101512, 197792), (113024, 177646)]