71578276

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{571}}^1$

素因数の和:641

約数の個数: 72

約数和(自身を含む): 161889728

約数和(自身を除く): 90311452

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 37, 44, 74, 77, 121, 148, 154, 242, 259, 308, 407, 484, 518, 571, 814, 847, 1036, 1142, 1628, 1694, 2284, 2849, 3388, 3997, 4477, 5698, 6281, 7994, 8954, 11396, 12562, 15988, 17908, 21127, 25124, 31339, 42254, 43967, 62678, 69091, 84508, 87934, 125356, 138182, 147889, 175868, 232397, 276364, 295778, 464794, 483637, 591556, 929588, 967274, 1626779, 1934548, 2556367, 3253558, 5112734, 6507116, 10225468, 17894569, 35789138, 71578276]

約数ペア:

[(1, 71578276), (2, 35789138), (4, 17894569), (7, 10225468), (11, 6507116), (14, 5112734), (22, 3253558), (28, 2556367), (37, 1934548), (44, 1626779), (74, 967274), (77, 929588), (121, 591556), (148, 483637), (154, 464794), (242, 295778), (259, 276364), (308, 232397), (407, 175868), (484, 147889), (518, 138182), (571, 125356), (814, 87934), (847, 84508), (1036, 69091), (1142, 62678), (1628, 43967), (1694, 42254), (2284, 31339), (2849, 25124), (3388, 21127), (3997, 17908), (4477, 15988), (5698, 12562), (6281, 11396), (7994, 8954)]