19927040

素因数分解:

$2^{12}\times 5^1\times 7^1\times {\mathrm{139}}^1$

素因数の和:175

約数の個数: 104

約数和(自身を含む): 55043520

約数和(自身を除く): 35116480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 139, 140, 160, 224, 256, 278, 280, 320, 448, 512, 556, 560, 640, 695, 896, 973, 1024, 1112, 1120, 1280, 1390, 1792, 1946, 2048, 2224, 2240, 2560, 2780, 3584, 3892, 4096, 4448, 4480, 4865, 5120, 5560, 7168, 7784, 8896, 8960, 9730, 10240, 11120, 14336, 15568, 17792, 17920, 19460, 20480, 22240, 28672, 31136, 35584, 35840, 38920, 44480, 62272, 71168, 71680, 77840, 88960, 124544, 142336, 143360, 155680, 177920, 249088, 284672, 311360, 355840, 498176, 569344, 622720, 711680, 996352, 1245440, 1423360, 1992704, 2490880, 2846720, 3985408, 4981760, 9963520, 19927040]

約数ペア:

[(1, 19927040), (2, 9963520), (4, 4981760), (5, 3985408), (7, 2846720), (8, 2490880), (10, 1992704), (14, 1423360), (16, 1245440), (20, 996352), (28, 711680), (32, 622720), (35, 569344), (40, 498176), (56, 355840), (64, 311360), (70, 284672), (80, 249088), (112, 177920), (128, 155680), (139, 143360), (140, 142336), (160, 124544), (224, 88960), (256, 77840), (278, 71680), (280, 71168), (320, 62272), (448, 44480), (512, 38920), (556, 35840), (560, 35584), (640, 31136), (695, 28672), (896, 22240), (973, 20480), (1024, 19460), (1112, 17920), (1120, 17792), (1280, 15568), (1390, 14336), (1792, 11120), (1946, 10240), (2048, 9730), (2224, 8960), (2240, 8896), (2560, 7784), (2780, 7168), (3584, 5560), (3892, 5120), (4096, 4865), (4448, 4480)]