179901981

素因数分解:

$3^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:295

約数の個数: 72

約数和(自身を含む): 316910880

約数和(自身を除く): 137008899

約数列:

[1, 3, 7, 9, 21, 43, 49, 53, 63, 129, 147, 159, 179, 301, 371, 387, 441, 477, 537, 903, 1113, 1253, 1611, 2107, 2279, 2597, 2709, 3339, 3759, 6321, 6837, 7697, 7791, 8771, 9487, 11277, 15953, 18963, 20511, 23091, 23373, 26313, 28461, 47859, 53879, 66409, 69273, 78939, 85383, 111671, 143577, 161637, 199227, 335013, 377153, 407941, 464863, 484911, 597681, 1005039, 1131459, 1223823, 1394589, 2855587, 3394377, 3671469, 4183767, 8566761, 19989109, 25700283, 59967327, 179901981]

約数ペア:

[(1, 179901981), (3, 59967327), (7, 25700283), (9, 19989109), (21, 8566761), (43, 4183767), (49, 3671469), (53, 3394377), (63, 2855587), (129, 1394589), (147, 1223823), (159, 1131459), (179, 1005039), (301, 597681), (371, 484911), (387, 464863), (441, 407941), (477, 377153), (537, 335013), (903, 199227), (1113, 161637), (1253, 143577), (1611, 111671), (2107, 85383), (2279, 78939), (2597, 69273), (2709, 66409), (3339, 53879), (3759, 47859), (6321, 28461), (6837, 26313), (7697, 23373), (7791, 23091), (8771, 20511), (9487, 18963), (11277, 15953)]