20472542720

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{8219}}^1$

素因数の和:8388

約数の個数: 160

約数和(自身を含む): 56508883200

約数和(自身を除く): 36036340480

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, 8219, 8896, 8960, 9730, 11120, 15568, 16438, 17792, 17920, 19460, 22240, 31136, 32876, 35584, 38920, 41095, 44480, 57533, 62272, 65752, 71168, 77840, 82190, 88960, 115066, 124544, 131504, 155680, 164380, 177920, 230132, 249088, 263008, 287665, 311360, 328760, 355840, 460264, 498176, 526016, 575330, 622720, 657520, 920528, 1052032, 1142441, 1150660, 1245440, 1315040, 1841056, 2104064, 2284882, 2301320, 2490880, 2630080, 3682112, 4208128, 4569764, 4602640, 5260160, 5712205, 7364224, 7997087, 9139528, 9205280, 10520320, 11424410, 14728448, 15994174, 18279056, 18410560, 21040640, 22848820, 29456896, 31988348, 36558112, 36821120, 39985435, 45697640, 63976696, 73116224, 73642240, 79970870, 91395280, 127953392, 146232448, 147284480, 159941740, 182790560, 255906784, 292464896, 319883480, 365581120, 511813568, 584929792, 639766960, 731162240, 1023627136, 1279533920, 1462324480, 2047254272, 2559067840, 2924648960, 4094508544, 5118135680, 10236271360, 20472542720]

約数ペア:

[(1, 20472542720), (2, 10236271360), (4, 5118135680), (5, 4094508544), (7, 2924648960), (8, 2559067840), (10, 2047254272), (14, 1462324480), (16, 1279533920), (20, 1023627136), (28, 731162240), (32, 639766960), (35, 584929792), (40, 511813568), (56, 365581120), (64, 319883480), (70, 292464896), (80, 255906784), (112, 182790560), (128, 159941740), (139, 147284480), (140, 146232448), (160, 127953392), (224, 91395280), (256, 79970870), (278, 73642240), (280, 73116224), (320, 63976696), (448, 45697640), (512, 39985435), (556, 36821120), (560, 36558112), (640, 31988348), (695, 29456896), (896, 22848820), (973, 21040640), (1112, 18410560), (1120, 18279056), (1280, 15994174), (1390, 14728448), (1792, 11424410), (1946, 10520320), (2224, 9205280), (2240, 9139528), (2560, 7997087), (2780, 7364224), (3584, 5712205), (3892, 5260160), (4448, 4602640), (4480, 4569764), (4865, 4208128), (5560, 3682112), (7784, 2630080), (8219, 2490880), (8896, 2301320), (8960, 2284882), (9730, 2104064), (11120, 1841056), (15568, 1315040), (16438, 1245440), (17792, 1150660), (17920, 1142441), (19460, 1052032), (22240, 920528), (31136, 657520), (32876, 622720), (35584, 575330), (38920, 526016), (41095, 498176), (44480, 460264), (57533, 355840), (62272, 328760), (65752, 311360), (71168, 287665), (77840, 263008), (82190, 249088), (88960, 230132), (115066, 177920), (124544, 164380), (131504, 155680)]