68720001

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{257}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 114353856

約数和(自身を除く): 45633855

約数列:

[1, 3, 7, 17, 21, 49, 51, 107, 119, 147, 257, 321, 357, 749, 771, 833, 1799, 1819, 2247, 2499, 4369, 5243, 5397, 5457, 12593, 12733, 13107, 15729, 27499, 30583, 37779, 38199, 82497, 89131, 91749, 192493, 214081, 267393, 467483, 577479, 642243, 1347451, 1402449, 3272381, 4042353, 9817143, 22906667, 68720001]

約数ペア:

[(1, 68720001), (3, 22906667), (7, 9817143), (17, 4042353), (21, 3272381), (49, 1402449), (51, 1347451), (107, 642243), (119, 577479), (147, 467483), (257, 267393), (321, 214081), (357, 192493), (749, 91749), (771, 89131), (833, 82497), (1799, 38199), (1819, 37779), (2247, 30583), (2499, 27499), (4369, 15729), (5243, 13107), (5397, 12733), (5457, 12593)]