1988049361396

素因数分解:

$2^2\times 7^1\times {\mathrm{257}}^1\times {\mathrm{683}}^1\times {\mathrm{404497}}^1$

素因数の和:405448

約数の個数: 48

約数和(自身を含む): 3997423979136

約数和(自身を除く): 2009374617740

約数列:

[1, 2, 4, 7, 14, 28, 257, 514, 683, 1028, 1366, 1799, 2732, 3598, 4781, 7196, 9562, 19124, 175531, 351062, 404497, 702124, 808994, 1228717, 1617988, 2457434, 2831479, 4914868, 5662958, 11325916, 103955729, 207911458, 276271451, 415822916, 552542902, 727690103, 1105085804, 1455380206, 1933900157, 2910760412, 3867800314, 7735600628, 71001762907, 142003525814, 284007051628, 497012340349, 994024680698, 1988049361396]

約数ペア:

[(1, 1988049361396), (2, 994024680698), (4, 497012340349), (7, 284007051628), (14, 142003525814), (28, 71001762907), (257, 7735600628), (514, 3867800314), (683, 2910760412), (1028, 1933900157), (1366, 1455380206), (1799, 1105085804), (2732, 727690103), (3598, 552542902), (4781, 415822916), (7196, 276271451), (9562, 207911458), (19124, 103955729), (175531, 11325916), (351062, 5662958), (404497, 4914868), (702124, 2831479), (808994, 2457434), (1228717, 1617988)]