687481569

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1613}}^1$

素因数の和:1742

約数の個数: 48

約数和(自身を含む): 1087706880

約数和(自身を除く): 400225311

約数列:

[1, 3, 9, 23, 29, 69, 71, 87, 207, 213, 261, 639, 667, 1613, 1633, 2001, 2059, 4839, 4899, 6003, 6177, 14517, 14697, 18531, 37099, 46777, 47357, 111297, 114523, 140331, 142071, 333891, 343569, 420993, 426213, 1030707, 1075871, 2634029, 3227613, 3321167, 7902087, 9682839, 9963501, 23706261, 29890503, 76386841, 229160523, 687481569]

約数ペア:

[(1, 687481569), (3, 229160523), (9, 76386841), (23, 29890503), (29, 23706261), (69, 9963501), (71, 9682839), (87, 7902087), (207, 3321167), (213, 3227613), (261, 2634029), (639, 1075871), (667, 1030707), (1613, 426213), (1633, 420993), (2001, 343569), (2059, 333891), (4839, 142071), (4899, 140331), (6003, 114523), (6177, 111297), (14517, 47357), (14697, 46777), (18531, 37099)]