178916075

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:153

約数の個数: 72

約数和(自身を含む): 264679488

約数和(自身を除く): 85763413

約数列:

[1, 5, 13, 17, 25, 47, 53, 65, 85, 169, 221, 235, 265, 325, 425, 611, 689, 799, 845, 901, 1105, 1175, 1325, 2491, 2873, 3055, 3445, 3995, 4225, 4505, 5525, 7943, 8957, 10387, 11713, 12455, 14365, 15275, 17225, 19975, 22525, 32383, 39715, 42347, 44785, 51935, 58565, 62275, 71825, 135031, 152269, 161915, 198575, 211735, 223925, 259675, 292825, 420979, 550511, 675155, 761345, 809575, 1058675, 2104895, 2752555, 3375775, 3806725, 7156643, 10524475, 13762775, 35783215, 178916075]

約数ペア:

[(1, 178916075), (5, 35783215), (13, 13762775), (17, 10524475), (25, 7156643), (47, 3806725), (53, 3375775), (65, 2752555), (85, 2104895), (169, 1058675), (221, 809575), (235, 761345), (265, 675155), (325, 550511), (425, 420979), (611, 292825), (689, 259675), (799, 223925), (845, 211735), (901, 198575), (1105, 161915), (1175, 152269), (1325, 135031), (2491, 71825), (2873, 62275), (3055, 58565), (3445, 51935), (3995, 44785), (4225, 42347), (4505, 39715), (5525, 32383), (7943, 22525), (8957, 19975), (10387, 17225), (11713, 15275), (12455, 14365)]