81813606

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{509}}^1$

素因数の和:653

約数の個数: 64

約数和(自身を含む): 193881600

約数和(自身を除く): 112067994

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 86, 89, 129, 178, 258, 267, 301, 509, 534, 602, 623, 903, 1018, 1246, 1527, 1806, 1869, 3054, 3563, 3738, 3827, 7126, 7654, 10689, 11481, 21378, 21887, 22962, 26789, 43774, 45301, 53578, 65661, 80367, 90602, 131322, 135903, 153209, 160734, 271806, 306418, 317107, 459627, 634214, 919254, 951321, 1902642, 1947943, 3895886, 5843829, 11687658, 13635601, 27271202, 40906803, 81813606]

約数ペア:

[(1, 81813606), (2, 40906803), (3, 27271202), (6, 13635601), (7, 11687658), (14, 5843829), (21, 3895886), (42, 1947943), (43, 1902642), (86, 951321), (89, 919254), (129, 634214), (178, 459627), (258, 317107), (267, 306418), (301, 271806), (509, 160734), (534, 153209), (602, 135903), (623, 131322), (903, 90602), (1018, 80367), (1246, 65661), (1527, 53578), (1806, 45301), (1869, 43774), (3054, 26789), (3563, 22962), (3738, 21887), (3827, 21378), (7126, 11481), (7654, 10689)]