20431440

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{1051}}^1$

素因数の和:1079

約数の個数: 120

約数和(自身を含む): 71224608

約数和(自身を除く): 50793168

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 243, 270, 324, 360, 405, 432, 486, 540, 648, 720, 810, 972, 1051, 1080, 1215, 1296, 1620, 1944, 2102, 2160, 2430, 3153, 3240, 3888, 4204, 4860, 5255, 6306, 6480, 8408, 9459, 9720, 10510, 12612, 15765, 16816, 18918, 19440, 21020, 25224, 28377, 31530, 37836, 42040, 47295, 50448, 56754, 63060, 75672, 84080, 85131, 94590, 113508, 126120, 141885, 151344, 170262, 189180, 227016, 252240, 255393, 283770, 340524, 378360, 425655, 454032, 510786, 567540, 681048, 756720, 851310, 1021572, 1135080, 1276965, 1362096, 1702620, 2043144, 2270160, 2553930, 3405240, 4086288, 5107860, 6810480, 10215720, 20431440]

約数ペア:

[(1, 20431440), (2, 10215720), (3, 6810480), (4, 5107860), (5, 4086288), (6, 3405240), (8, 2553930), (9, 2270160), (10, 2043144), (12, 1702620), (15, 1362096), (16, 1276965), (18, 1135080), (20, 1021572), (24, 851310), (27, 756720), (30, 681048), (36, 567540), (40, 510786), (45, 454032), (48, 425655), (54, 378360), (60, 340524), (72, 283770), (80, 255393), (81, 252240), (90, 227016), (108, 189180), (120, 170262), (135, 151344), (144, 141885), (162, 126120), (180, 113508), (216, 94590), (240, 85131), (243, 84080), (270, 75672), (324, 63060), (360, 56754), (405, 50448), (432, 47295), (486, 42040), (540, 37836), (648, 31530), (720, 28377), (810, 25224), (972, 21020), (1051, 19440), (1080, 18918), (1215, 16816), (1296, 15765), (1620, 12612), (1944, 10510), (2102, 9720), (2160, 9459), (2430, 8408), (3153, 6480), (3240, 6306), (3888, 5255), (4204, 4860)]