20181551335

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2503}}^1\times {\mathrm{4729}}^1$

素因数の和:7279

約数の個数: 32

約数和(自身を含む): 27288391680

約数和(自身を除く): 7106840345

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 2503, 4729, 12515, 23645, 27533, 52019, 77593, 137665, 146599, 260095, 387965, 732995, 853523, 1612589, 4267615, 8062945, 11836687, 59183435, 130203557, 366937297, 651017785, 1834686485, 4036310267, 20181551335]

約数ペア:

[(1, 20181551335), (5, 4036310267), (11, 1834686485), (31, 651017785), (55, 366937297), (155, 130203557), (341, 59183435), (1705, 11836687), (2503, 8062945), (4729, 4267615), (12515, 1612589), (23645, 853523), (27533, 732995), (52019, 387965), (77593, 260095), (137665, 146599)]