20200864

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1$

素因数の和:313

約数の個数: 48

約数和(自身を含む): 41436360

約数和(自身を除く): 21235496

約数列:

[1, 2, 4, 8, 16, 32, 41, 82, 89, 164, 173, 178, 328, 346, 356, 656, 692, 712, 1312, 1384, 1424, 2768, 2848, 3649, 5536, 7093, 7298, 14186, 14596, 15397, 28372, 29192, 30794, 56744, 58384, 61588, 113488, 116768, 123176, 226976, 246352, 492704, 631277, 1262554, 2525108, 5050216, 10100432, 20200864]

約数ペア:

[(1, 20200864), (2, 10100432), (4, 5050216), (8, 2525108), (16, 1262554), (32, 631277), (41, 492704), (82, 246352), (89, 226976), (164, 123176), (173, 116768), (178, 113488), (328, 61588), (346, 58384), (356, 56744), (656, 30794), (692, 29192), (712, 28372), (1312, 15397), (1384, 14596), (1424, 14186), (2768, 7298), (2848, 7093), (3649, 5536)]