78943977

素因数分解:

$3^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:180

約数の個数: 80

約数和(自身を含む): 143016192

約数和(自身を除く): 64072215

約数列:

[1, 3, 7, 9, 21, 27, 37, 53, 63, 71, 81, 111, 159, 189, 213, 259, 333, 371, 477, 497, 567, 639, 777, 999, 1113, 1431, 1491, 1917, 1961, 2331, 2627, 2997, 3339, 3763, 4293, 4473, 5751, 5883, 6993, 7881, 10017, 11289, 13419, 13727, 17649, 18389, 20979, 23643, 26341, 30051, 33867, 40257, 41181, 52947, 55167, 70929, 79023, 101601, 123543, 139231, 158841, 165501, 212787, 237069, 304803, 370629, 417693, 496503, 711207, 974617, 1111887, 1253079, 1489509, 2133621, 2923851, 3759237, 8771553, 11277711, 26314659, 78943977]

約数ペア:

[(1, 78943977), (3, 26314659), (7, 11277711), (9, 8771553), (21, 3759237), (27, 2923851), (37, 2133621), (53, 1489509), (63, 1253079), (71, 1111887), (81, 974617), (111, 711207), (159, 496503), (189, 417693), (213, 370629), (259, 304803), (333, 237069), (371, 212787), (477, 165501), (497, 158841), (567, 139231), (639, 123543), (777, 101601), (999, 79023), (1113, 70929), (1431, 55167), (1491, 52947), (1917, 41181), (1961, 40257), (2331, 33867), (2627, 30051), (2997, 26341), (3339, 23643), (3763, 20979), (4293, 18389), (4473, 17649), (5751, 13727), (5883, 13419), (6993, 11289), (7881, 10017)]