20752440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:213

約数の個数: 128

約数和(自身を含む): 66493440

約数和(自身を除く): 45741000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 73, 92, 103, 115, 120, 138, 146, 184, 206, 219, 230, 276, 292, 309, 345, 365, 412, 438, 460, 515, 552, 584, 618, 690, 730, 824, 876, 920, 1030, 1095, 1236, 1380, 1460, 1545, 1679, 1752, 2060, 2190, 2369, 2472, 2760, 2920, 3090, 3358, 4120, 4380, 4738, 5037, 6180, 6716, 7107, 7519, 8395, 8760, 9476, 10074, 11845, 12360, 13432, 14214, 15038, 16790, 18952, 20148, 22557, 23690, 25185, 28428, 30076, 33580, 35535, 37595, 40296, 45114, 47380, 50370, 56856, 60152, 67160, 71070, 75190, 90228, 94760, 100740, 112785, 142140, 150380, 172937, 180456, 201480, 225570, 284280, 300760, 345874, 451140, 518811, 691748, 864685, 902280, 1037622, 1383496, 1729370, 2075244, 2594055, 3458740, 4150488, 5188110, 6917480, 10376220, 20752440]

約数ペア:

[(1, 20752440), (2, 10376220), (3, 6917480), (4, 5188110), (5, 4150488), (6, 3458740), (8, 2594055), (10, 2075244), (12, 1729370), (15, 1383496), (20, 1037622), (23, 902280), (24, 864685), (30, 691748), (40, 518811), (46, 451140), (60, 345874), (69, 300760), (73, 284280), (92, 225570), (103, 201480), (115, 180456), (120, 172937), (138, 150380), (146, 142140), (184, 112785), (206, 100740), (219, 94760), (230, 90228), (276, 75190), (292, 71070), (309, 67160), (345, 60152), (365, 56856), (412, 50370), (438, 47380), (460, 45114), (515, 40296), (552, 37595), (584, 35535), (618, 33580), (690, 30076), (730, 28428), (824, 25185), (876, 23690), (920, 22557), (1030, 20148), (1095, 18952), (1236, 16790), (1380, 15038), (1460, 14214), (1545, 13432), (1679, 12360), (1752, 11845), (2060, 10074), (2190, 9476), (2369, 8760), (2472, 8395), (2760, 7519), (2920, 7107), (3090, 6716), (3358, 6180), (4120, 5037), (4380, 4738)]