28667744

素因数分解:

$2^5\times 7^2\times {\mathrm{47}}^1\times {\mathrm{389}}^1$

素因数の和:460

約数の個数: 72

約数和(自身を含む): 67223520

約数和(自身を除く): 38555776

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 49, 56, 94, 98, 112, 188, 196, 224, 329, 376, 389, 392, 658, 752, 778, 784, 1316, 1504, 1556, 1568, 2303, 2632, 2723, 3112, 4606, 5264, 5446, 6224, 9212, 10528, 10892, 12448, 18283, 18424, 19061, 21784, 36566, 36848, 38122, 43568, 73132, 73696, 76244, 87136, 127981, 146264, 152488, 255962, 292528, 304976, 511924, 585056, 609952, 895867, 1023848, 1791734, 2047696, 3583468, 4095392, 7166936, 14333872, 28667744]

約数ペア:

[(1, 28667744), (2, 14333872), (4, 7166936), (7, 4095392), (8, 3583468), (14, 2047696), (16, 1791734), (28, 1023848), (32, 895867), (47, 609952), (49, 585056), (56, 511924), (94, 304976), (98, 292528), (112, 255962), (188, 152488), (196, 146264), (224, 127981), (329, 87136), (376, 76244), (389, 73696), (392, 73132), (658, 43568), (752, 38122), (778, 36848), (784, 36566), (1316, 21784), (1504, 19061), (1556, 18424), (1568, 18283), (2303, 12448), (2632, 10892), (2723, 10528), (3112, 9212), (4606, 6224), (5264, 5446)]