128155775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{347}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 186416640

約数和(自身を除く): 58260865

約数列:

[1, 5, 11, 17, 25, 55, 79, 85, 187, 275, 347, 395, 425, 869, 935, 1343, 1735, 1975, 3817, 4345, 4675, 5899, 6715, 8675, 14773, 19085, 21725, 27413, 29495, 33575, 64889, 73865, 95425, 137065, 147475, 301543, 324445, 369325, 466021, 685325, 1507715, 1622225, 2330105, 5126231, 7538575, 11650525, 25631155, 128155775]

約数ペア:

[(1, 128155775), (5, 25631155), (11, 11650525), (17, 7538575), (25, 5126231), (55, 2330105), (79, 1622225), (85, 1507715), (187, 685325), (275, 466021), (347, 369325), (395, 324445), (425, 301543), (869, 147475), (935, 137065), (1343, 95425), (1735, 73865), (1975, 64889), (3817, 33575), (4345, 29495), (4675, 27413), (5899, 21725), (6715, 19085), (8675, 14773)]