20026040

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{12211}}^1$

素因数の和:12263

約数の個数: 32

約数和(自身を含む): 46161360

約数和(自身を除く): 26135320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 12211, 24422, 48844, 61055, 97688, 122110, 244220, 488440, 500651, 1001302, 2002604, 2503255, 4005208, 5006510, 10013020, 20026040]

約数ペア:

[(1, 20026040), (2, 10013020), (4, 5006510), (5, 4005208), (8, 2503255), (10, 2002604), (20, 1001302), (40, 500651), (41, 488440), (82, 244220), (164, 122110), (205, 97688), (328, 61055), (410, 48844), (820, 24422), (1640, 12211)]