2490880

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{139}}^1$

素因数の和:169

約数の個数: 80

約数和(自身を含む): 6874560

約数和(自身を除く): 4383680

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, 1112, 1120, 1280, 1390, 1792, 1946, 2224, 2240, 2560, 2780, 3584, 3892, 4448, 4480, 4865, 5560, 7784, 8896, 8960, 9730, 11120, 15568, 17792, 17920, 19460, 22240, 31136, 35584, 38920, 44480, 62272, 71168, 77840, 88960, 124544, 155680, 177920, 249088, 311360, 355840, 498176, 622720, 1245440, 2490880]

約数ペア:

[(1, 2490880), (2, 1245440), (4, 622720), (5, 498176), (7, 355840), (8, 311360), (10, 249088), (14, 177920), (16, 155680), (20, 124544), (28, 88960), (32, 77840), (35, 71168), (40, 62272), (56, 44480), (64, 38920), (70, 35584), (80, 31136), (112, 22240), (128, 19460), (139, 17920), (140, 17792), (160, 15568), (224, 11120), (256, 9730), (278, 8960), (280, 8896), (320, 7784), (448, 5560), (512, 4865), (556, 4480), (560, 4448), (640, 3892), (695, 3584), (896, 2780), (973, 2560), (1112, 2240), (1120, 2224), (1280, 1946), (1390, 1792)]