28131532

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1$

素因数の和:319

約数の個数: 72

約数和(自身を含む): 61937568

約数和(自身を除く): 33806036

約数列:

[1, 2, 4, 11, 13, 17, 22, 26, 34, 44, 52, 68, 121, 143, 187, 221, 242, 263, 286, 374, 442, 484, 526, 572, 748, 884, 1052, 1573, 2057, 2431, 2893, 3146, 3419, 4114, 4471, 4862, 5786, 6292, 6838, 8228, 8942, 9724, 11572, 13676, 17884, 26741, 31823, 37609, 49181, 53482, 58123, 63646, 75218, 98362, 106964, 116246, 127292, 150436, 196724, 232492, 413699, 540991, 639353, 827398, 1081982, 1278706, 1654796, 2163964, 2557412, 7032883, 14065766, 28131532]

約数ペア:

[(1, 28131532), (2, 14065766), (4, 7032883), (11, 2557412), (13, 2163964), (17, 1654796), (22, 1278706), (26, 1081982), (34, 827398), (44, 639353), (52, 540991), (68, 413699), (121, 232492), (143, 196724), (187, 150436), (221, 127292), (242, 116246), (263, 106964), (286, 98362), (374, 75218), (442, 63646), (484, 58123), (526, 53482), (572, 49181), (748, 37609), (884, 31823), (1052, 26741), (1573, 17884), (2057, 13676), (2431, 11572), (2893, 9724), (3146, 8942), (3419, 8228), (4114, 6838), (4471, 6292), (4862, 5786)]