290389876

素因数分解:

$2^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1087}}^1$

素因数の和:1181

約数の個数: 72

約数和(自身を含む): 625121280

約数和(自身を除く): 334731404

約数列:

[1, 2, 4, 7, 14, 28, 29, 47, 49, 58, 94, 98, 116, 188, 196, 203, 329, 406, 658, 812, 1087, 1316, 1363, 1421, 2174, 2303, 2726, 2842, 4348, 4606, 5452, 5684, 7609, 9212, 9541, 15218, 19082, 30436, 31523, 38164, 51089, 53263, 63046, 66787, 102178, 106526, 126092, 133574, 204356, 213052, 220661, 267148, 357623, 441322, 715246, 882644, 1430492, 1481581, 1544627, 2503361, 2963162, 3089254, 5006722, 5926324, 6178508, 10013444, 10371067, 20742134, 41484268, 72597469, 145194938, 290389876]

約数ペア:

[(1, 290389876), (2, 145194938), (4, 72597469), (7, 41484268), (14, 20742134), (28, 10371067), (29, 10013444), (47, 6178508), (49, 5926324), (58, 5006722), (94, 3089254), (98, 2963162), (116, 2503361), (188, 1544627), (196, 1481581), (203, 1430492), (329, 882644), (406, 715246), (658, 441322), (812, 357623), (1087, 267148), (1316, 220661), (1363, 213052), (1421, 204356), (2174, 133574), (2303, 126092), (2726, 106526), (2842, 102178), (4348, 66787), (4606, 63046), (5452, 53263), (5684, 51089), (7609, 38164), (9212, 31523), (9541, 30436), (15218, 19082)]