278311521

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{2789}}^1$

素因数の和:2889

約数の個数: 32

約数和(自身を含む): 407116800

約数和(自身を除く): 128805279

約数列:

[1, 3, 29, 31, 37, 87, 93, 111, 899, 1073, 1147, 2697, 2789, 3219, 3441, 8367, 33263, 80881, 86459, 99789, 103193, 242643, 259377, 309579, 2507311, 2992597, 3198983, 7521933, 8977791, 9596949, 92770507, 278311521]

約数ペア:

[(1, 278311521), (3, 92770507), (29, 9596949), (31, 8977791), (37, 7521933), (87, 3198983), (93, 2992597), (111, 2507311), (899, 309579), (1073, 259377), (1147, 242643), (2697, 103193), (2789, 99789), (3219, 86459), (3441, 80881), (8367, 33263)]