128402589

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1483}}^1$

素因数の和:1550

約数の個数: 48

約数和(自身を含む): 216545280

約数和(自身を除く): 88142691

約数列:

[1, 3, 7, 19, 21, 31, 49, 57, 93, 133, 147, 217, 399, 589, 651, 931, 1483, 1519, 1767, 2793, 4123, 4449, 4557, 10381, 12369, 28177, 28861, 31143, 45973, 72667, 84531, 86583, 137919, 197239, 218001, 321811, 591717, 873487, 965433, 1380673, 2252677, 2620461, 4142019, 6114409, 6758031, 18343227, 42800863, 128402589]

約数ペア:

[(1, 128402589), (3, 42800863), (7, 18343227), (19, 6758031), (21, 6114409), (31, 4142019), (49, 2620461), (57, 2252677), (93, 1380673), (133, 965433), (147, 873487), (217, 591717), (399, 321811), (589, 218001), (651, 197239), (931, 137919), (1483, 86583), (1519, 84531), (1767, 72667), (2793, 45973), (4123, 31143), (4449, 28861), (4557, 28177), (10381, 12369)]