20215656

素因数分解:

$2^3\times 3^5\times {\mathrm{10399}}^1$

素因数の和:10420

約数の個数: 48

約数和(自身を含む): 56784000

約数和(自身を除く): 36568344

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 243, 324, 486, 648, 972, 1944, 10399, 20798, 31197, 41596, 62394, 83192, 93591, 124788, 187182, 249576, 280773, 374364, 561546, 748728, 842319, 1123092, 1684638, 2246184, 2526957, 3369276, 5053914, 6738552, 10107828, 20215656]

約数ペア:

[(1, 20215656), (2, 10107828), (3, 6738552), (4, 5053914), (6, 3369276), (8, 2526957), (9, 2246184), (12, 1684638), (18, 1123092), (24, 842319), (27, 748728), (36, 561546), (54, 374364), (72, 280773), (81, 249576), (108, 187182), (162, 124788), (216, 93591), (243, 83192), (324, 62394), (486, 41596), (648, 31197), (972, 20798), (1944, 10399)]