72640029

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:238

約数の個数: 64

約数和(自身を含む): 126517248

約数和(自身を除く): 53877219

約数列:

[1, 3, 7, 11, 21, 33, 43, 71, 77, 103, 129, 213, 231, 301, 309, 473, 497, 721, 781, 903, 1133, 1419, 1491, 2163, 2343, 3053, 3311, 3399, 4429, 5467, 7313, 7931, 9159, 9933, 13287, 16401, 21371, 21939, 23793, 31003, 33583, 48719, 51191, 64113, 80443, 93009, 100749, 146157, 153573, 235081, 241329, 314459, 341033, 563101, 705243, 943377, 1023099, 1689303, 2201213, 3459049, 6603639, 10377147, 24213343, 72640029]

約数ペア:

[(1, 72640029), (3, 24213343), (7, 10377147), (11, 6603639), (21, 3459049), (33, 2201213), (43, 1689303), (71, 1023099), (77, 943377), (103, 705243), (129, 563101), (213, 341033), (231, 314459), (301, 241329), (309, 235081), (473, 153573), (497, 146157), (721, 100749), (781, 93009), (903, 80443), (1133, 64113), (1419, 51191), (1491, 48719), (2163, 33583), (2343, 31003), (3053, 23793), (3311, 21939), (3399, 21371), (4429, 16401), (5467, 13287), (7313, 9933), (7931, 9159)]