78406587

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{281}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 134204928

約数和(自身を除く): 55798341

約数列:

[1, 3, 7, 9, 21, 43, 63, 103, 129, 281, 301, 309, 387, 721, 843, 903, 927, 1967, 2163, 2529, 2709, 4429, 5901, 6489, 12083, 13287, 17703, 28943, 31003, 36249, 39861, 84581, 86829, 93009, 108747, 202601, 253743, 260487, 279027, 607803, 761229, 1244549, 1823409, 3733647, 8711843, 11200941, 26135529, 78406587]

約数ペア:

[(1, 78406587), (3, 26135529), (7, 11200941), (9, 8711843), (21, 3733647), (43, 1823409), (63, 1244549), (103, 761229), (129, 607803), (281, 279027), (301, 260487), (309, 253743), (387, 202601), (721, 108747), (843, 93009), (903, 86829), (927, 84581), (1967, 39861), (2163, 36249), (2529, 31003), (2709, 28943), (4429, 17703), (5901, 13287), (6489, 12083)]