638694864

素因数分解:

$2^4\times 3^2\times {\mathrm{4435381}}^1$

素因数の和:4435395

約数の個数: 30

約数和(自身を含む): 1787458946

約数和(自身を除く): 1148764082

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 4435381, 8870762, 13306143, 17741524, 26612286, 35483048, 39918429, 53224572, 70966096, 79836858, 106449144, 159673716, 212898288, 319347432, 638694864]

約数ペア:

[(1, 638694864), (2, 319347432), (3, 212898288), (4, 159673716), (6, 106449144), (8, 79836858), (9, 70966096), (12, 53224572), (16, 39918429), (18, 35483048), (24, 26612286), (36, 17741524), (48, 13306143), (72, 8870762), (144, 4435381)]