20406280328

素因数分解:

$2^3\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1753}}^1\times {\mathrm{2143}}^1$

素因数の和:4006

約数の個数: 64

約数和(自身を含む): 44224373760

約数和(自身を除く): 23818093432

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 97, 194, 388, 679, 776, 1358, 1753, 2143, 2716, 3506, 4286, 5432, 7012, 8572, 12271, 14024, 15001, 17144, 24542, 30002, 49084, 60004, 98168, 120008, 170041, 207871, 340082, 415742, 680164, 831484, 1190287, 1360328, 1455097, 1662968, 2380574, 2910194, 3756679, 4761148, 5820388, 7513358, 9522296, 11640776, 15026716, 26296753, 30053432, 52593506, 105187012, 210374024, 364397863, 728795726, 1457591452, 2550785041, 2915182904, 5101570082, 10203140164, 20406280328]

約数ペア:

[(1, 20406280328), (2, 10203140164), (4, 5101570082), (7, 2915182904), (8, 2550785041), (14, 1457591452), (28, 728795726), (56, 364397863), (97, 210374024), (194, 105187012), (388, 52593506), (679, 30053432), (776, 26296753), (1358, 15026716), (1753, 11640776), (2143, 9522296), (2716, 7513358), (3506, 5820388), (4286, 4761148), (5432, 3756679), (7012, 2910194), (8572, 2380574), (12271, 1662968), (14024, 1455097), (15001, 1360328), (17144, 1190287), (24542, 831484), (30002, 680164), (49084, 415742), (60004, 340082), (98168, 207871), (120008, 170041)]