82864880

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{21139}}^1$

素因数の和:21166

約数の個数: 60

約数和(自身を含む): 224126280

約数和(自身を除く): 141261400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 21139, 42278, 84556, 105695, 147973, 169112, 211390, 295946, 338224, 422780, 591892, 739865, 845560, 1035811, 1183784, 1479730, 1691120, 2071622, 2367568, 2959460, 4143244, 5179055, 5918920, 8286488, 10358110, 11837840, 16572976, 20716220, 41432440, 82864880]

約数ペア:

[(1, 82864880), (2, 41432440), (4, 20716220), (5, 16572976), (7, 11837840), (8, 10358110), (10, 8286488), (14, 5918920), (16, 5179055), (20, 4143244), (28, 2959460), (35, 2367568), (40, 2071622), (49, 1691120), (56, 1479730), (70, 1183784), (80, 1035811), (98, 845560), (112, 739865), (140, 591892), (196, 422780), (245, 338224), (280, 295946), (392, 211390), (490, 169112), (560, 147973), (784, 105695), (980, 84556), (1960, 42278), (3920, 21139)]