19958902880

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{17820449}}^1$

素因数の和:17820471

約数の個数: 48

約数和(自身を含む): 53889040800

約数和(自身を除く): 33930137920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 17820449, 35640898, 71281796, 89102245, 124743143, 142563592, 178204490, 249486286, 285127184, 356408980, 498972572, 570254368, 623715715, 712817960, 997945144, 1247431430, 1425635920, 1995890288, 2494862860, 2851271840, 3991780576, 4989725720, 9979451440, 19958902880]

約数ペア:

[(1, 19958902880), (2, 9979451440), (4, 4989725720), (5, 3991780576), (7, 2851271840), (8, 2494862860), (10, 1995890288), (14, 1425635920), (16, 1247431430), (20, 997945144), (28, 712817960), (32, 623715715), (35, 570254368), (40, 498972572), (56, 356408980), (70, 285127184), (80, 249486286), (112, 178204490), (140, 142563592), (160, 124743143), (224, 89102245), (280, 71281796), (560, 35640898), (1120, 17820449)]