42438039

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:180

約数の個数: 64

約数和(自身を含む): 72744960

約数和(自身を除く): 30306921

約数列:

[1, 3, 7, 19, 21, 31, 47, 57, 73, 93, 133, 141, 217, 219, 329, 399, 511, 589, 651, 893, 987, 1387, 1457, 1533, 1767, 2263, 2679, 3431, 4123, 4161, 4371, 6251, 6789, 9709, 10199, 10293, 12369, 15841, 18753, 24017, 27683, 29127, 30597, 42997, 47523, 65189, 72051, 83049, 106361, 128991, 193781, 195567, 300979, 319083, 456323, 581343, 744527, 902937, 1368969, 2020859, 2233581, 6062577, 14146013, 42438039]

約数ペア:

[(1, 42438039), (3, 14146013), (7, 6062577), (19, 2233581), (21, 2020859), (31, 1368969), (47, 902937), (57, 744527), (73, 581343), (93, 456323), (133, 319083), (141, 300979), (217, 195567), (219, 193781), (329, 128991), (399, 106361), (511, 83049), (589, 72051), (651, 65189), (893, 47523), (987, 42997), (1387, 30597), (1457, 29127), (1533, 27683), (1767, 24017), (2263, 18753), (2679, 15841), (3431, 12369), (4123, 10293), (4161, 10199), (4371, 9709), (6251, 6789)]