251738452

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{911}}^1$

素因数の和:1132

約数の個数: 48

約数和(自身を含む): 514805760

約数和(自身を除く): 263067308

約数列:

[1, 2, 4, 7, 14, 28, 71, 139, 142, 278, 284, 497, 556, 911, 973, 994, 1822, 1946, 1988, 3644, 3892, 6377, 9869, 12754, 19738, 25508, 39476, 64681, 69083, 126629, 129362, 138166, 253258, 258724, 276332, 452767, 506516, 886403, 905534, 1772806, 1811068, 3545612, 8990659, 17981318, 35962636, 62934613, 125869226, 251738452]

約数ペア:

[(1, 251738452), (2, 125869226), (4, 62934613), (7, 35962636), (14, 17981318), (28, 8990659), (71, 3545612), (139, 1811068), (142, 1772806), (278, 905534), (284, 886403), (497, 506516), (556, 452767), (911, 276332), (973, 258724), (994, 253258), (1822, 138166), (1946, 129362), (1988, 126629), (3644, 69083), (3892, 64681), (6377, 39476), (9869, 25508), (12754, 19738)]