128273409

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{281}}^1$

素因数の和:383

約数の個数: 64

約数和(自身を含む): 219283200

約数和(自身を除く): 91009791

約数列:

[1, 3, 9, 11, 27, 29, 33, 53, 87, 99, 159, 261, 281, 297, 319, 477, 583, 783, 843, 957, 1431, 1537, 1749, 2529, 2871, 3091, 4611, 5247, 7587, 8149, 8613, 9273, 13833, 14893, 15741, 16907, 24447, 27819, 41499, 44679, 50721, 73341, 83457, 89639, 134037, 152163, 163823, 220023, 268917, 402111, 431897, 456489, 491469, 806751, 1295691, 1474407, 2420253, 3887073, 4423221, 4750867, 11661219, 14252601, 42757803, 128273409]

約数ペア:

[(1, 128273409), (3, 42757803), (9, 14252601), (11, 11661219), (27, 4750867), (29, 4423221), (33, 3887073), (53, 2420253), (87, 1474407), (99, 1295691), (159, 806751), (261, 491469), (281, 456489), (297, 431897), (319, 402111), (477, 268917), (583, 220023), (783, 163823), (843, 152163), (957, 134037), (1431, 89639), (1537, 83457), (1749, 73341), (2529, 50721), (2871, 44679), (3091, 41499), (4611, 27819), (5247, 24447), (7587, 16907), (8149, 15741), (8613, 14893), (9273, 13833)]