128486379

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{257}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 211766400

約数和(自身を除く): 83280021

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 179, 257, 399, 537, 771, 931, 1253, 1799, 2793, 3401, 3759, 4883, 5397, 8771, 10203, 12593, 14649, 23807, 26313, 34181, 37779, 46003, 71421, 102543, 138009, 166649, 239267, 322021, 499947, 717801, 874057, 966063, 2254147, 2622171, 6118399, 6762441, 18355197, 42828793, 128486379]

約数ペア:

[(1, 128486379), (3, 42828793), (7, 18355197), (19, 6762441), (21, 6118399), (49, 2622171), (57, 2254147), (133, 966063), (147, 874057), (179, 717801), (257, 499947), (399, 322021), (537, 239267), (771, 166649), (931, 138009), (1253, 102543), (1799, 71421), (2793, 46003), (3401, 37779), (3759, 34181), (4883, 26313), (5397, 23807), (8771, 14649), (10203, 12593)]