247921648

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{277}}^1\times {\mathrm{331}}^1$

素因数の和:642

約数の個数: 60

約数和(自身を含む): 523595208

約数和(自身を除く): 275673560

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 277, 331, 338, 554, 662, 676, 1108, 1324, 1352, 2216, 2648, 2704, 3601, 4303, 4432, 5296, 7202, 8606, 14404, 17212, 28808, 34424, 46813, 55939, 57616, 68848, 91687, 93626, 111878, 183374, 187252, 223756, 366748, 374504, 447512, 733496, 749008, 895024, 1191931, 1466992, 2383862, 4767724, 9535448, 15495103, 19070896, 30990206, 61980412, 123960824, 247921648]

約数ペア:

[(1, 247921648), (2, 123960824), (4, 61980412), (8, 30990206), (13, 19070896), (16, 15495103), (26, 9535448), (52, 4767724), (104, 2383862), (169, 1466992), (208, 1191931), (277, 895024), (331, 749008), (338, 733496), (554, 447512), (662, 374504), (676, 366748), (1108, 223756), (1324, 187252), (1352, 183374), (2216, 111878), (2648, 93626), (2704, 91687), (3601, 68848), (4303, 57616), (4432, 55939), (5296, 46813), (7202, 34424), (8606, 28808), (14404, 17212)]