18478336

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1$

素因数の和:195

約数の個数: 72

約数和(自身を含む): 40471200

約数和(自身を除く): 21992864

約数列:

[1, 2, 4, 8, 16, 19, 29, 32, 38, 58, 64, 76, 116, 128, 131, 152, 232, 256, 262, 304, 464, 524, 551, 608, 928, 1048, 1102, 1216, 1856, 2096, 2204, 2432, 2489, 3712, 3799, 4192, 4408, 4864, 4978, 7424, 7598, 8384, 8816, 9956, 15196, 16768, 17632, 19912, 30392, 33536, 35264, 39824, 60784, 70528, 72181, 79648, 121568, 141056, 144362, 159296, 243136, 288724, 318592, 486272, 577448, 637184, 972544, 1154896, 2309792, 4619584, 9239168, 18478336]

約数ペア:

[(1, 18478336), (2, 9239168), (4, 4619584), (8, 2309792), (16, 1154896), (19, 972544), (29, 637184), (32, 577448), (38, 486272), (58, 318592), (64, 288724), (76, 243136), (116, 159296), (128, 144362), (131, 141056), (152, 121568), (232, 79648), (256, 72181), (262, 70528), (304, 60784), (464, 39824), (524, 35264), (551, 33536), (608, 30392), (928, 19912), (1048, 17632), (1102, 16768), (1216, 15196), (1856, 9956), (2096, 8816), (2204, 8384), (2432, 7598), (2489, 7424), (3712, 4978), (3799, 4864), (4192, 4408)]