213371860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{7529}}^1$

素因数の和:7660

約数の個数: 48

約数和(自身を含む): 487040400

約数和(自身を除く): 273668540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 218, 260, 436, 545, 1090, 1417, 2180, 2834, 5668, 7085, 7529, 14170, 15058, 28340, 30116, 37645, 75290, 97877, 150580, 195754, 391508, 489385, 820661, 978770, 1641322, 1957540, 3282644, 4103305, 8206610, 10668593, 16413220, 21337186, 42674372, 53342965, 106685930, 213371860]

約数ペア:

[(1, 213371860), (2, 106685930), (4, 53342965), (5, 42674372), (10, 21337186), (13, 16413220), (20, 10668593), (26, 8206610), (52, 4103305), (65, 3282644), (109, 1957540), (130, 1641322), (218, 978770), (260, 820661), (436, 489385), (545, 391508), (1090, 195754), (1417, 150580), (2180, 97877), (2834, 75290), (5668, 37645), (7085, 30116), (7529, 28340), (14170, 15058)]