20178804866

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{6781}}^1\times {\mathrm{5881}}^1$

素因数の和:12698

約数の個数: 32

約数和(自身を含む): 34466449536

約数和(自身を除く): 14287644670

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 5881, 6781, 11762, 13562, 64691, 74591, 129382, 135263, 149182, 155963, 270526, 311926, 1487893, 1715593, 2975786, 3431186, 39879061, 79758122, 438669671, 877339342, 917218403, 1834436806, 10089402433, 20178804866]

約数ペア:

[(1, 20178804866), (2, 10089402433), (11, 1834436806), (22, 917218403), (23, 877339342), (46, 438669671), (253, 79758122), (506, 39879061), (5881, 3431186), (6781, 2975786), (11762, 1715593), (13562, 1487893), (64691, 311926), (74591, 270526), (129382, 155963), (135263, 149182)]