214635740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{491}}^1\times {\mathrm{1987}}^1$

素因数の和:2498

約数の個数: 48

約数和(自身を含む): 492960384

約数和(自身を除く): 278324644

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 491, 982, 1964, 1987, 2455, 3974, 4910, 5401, 7948, 9820, 9935, 10802, 19870, 21604, 21857, 27005, 39740, 43714, 54010, 87428, 108020, 109285, 218570, 437140, 975617, 1951234, 3902468, 4878085, 9756170, 10731787, 19512340, 21463574, 42927148, 53658935, 107317870, 214635740]

約数ペア:

[(1, 214635740), (2, 107317870), (4, 53658935), (5, 42927148), (10, 21463574), (11, 19512340), (20, 10731787), (22, 9756170), (44, 4878085), (55, 3902468), (110, 1951234), (220, 975617), (491, 437140), (982, 218570), (1964, 109285), (1987, 108020), (2455, 87428), (3974, 54010), (4910, 43714), (5401, 39740), (7948, 27005), (9820, 21857), (9935, 21604), (10802, 19870)]