261251536

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{25633}}^1$

素因数の和:25668

約数の個数: 60

約数和(自身を含む): 634133892

約数和(自身を除く): 372882356

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 364, 392, 637, 728, 784, 1274, 1456, 2548, 5096, 10192, 25633, 51266, 102532, 179431, 205064, 333229, 358862, 410128, 666458, 717724, 1256017, 1332916, 1435448, 2332603, 2512034, 2665832, 2870896, 4665206, 5024068, 5331664, 9330412, 10048136, 16328221, 18660824, 20096272, 32656442, 37321648, 65312884, 130625768, 261251536]

約数ペア:

[(1, 261251536), (2, 130625768), (4, 65312884), (7, 37321648), (8, 32656442), (13, 20096272), (14, 18660824), (16, 16328221), (26, 10048136), (28, 9330412), (49, 5331664), (52, 5024068), (56, 4665206), (91, 2870896), (98, 2665832), (104, 2512034), (112, 2332603), (182, 1435448), (196, 1332916), (208, 1256017), (364, 717724), (392, 666458), (637, 410128), (728, 358862), (784, 333229), (1274, 205064), (1456, 179431), (2548, 102532), (5096, 51266), (10192, 25633)]