19905088

素因数分解:

$2^6\times 7^1\times {\mathrm{157}}^1\times {\mathrm{283}}^1$

素因数の和:459

約数の個数: 56

約数和(自身を含む): 45589952

約数和(自身を除く): 25684864

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 157, 224, 283, 314, 448, 566, 628, 1099, 1132, 1256, 1981, 2198, 2264, 2512, 3962, 4396, 4528, 5024, 7924, 8792, 9056, 10048, 15848, 17584, 18112, 31696, 35168, 44431, 63392, 70336, 88862, 126784, 177724, 311017, 355448, 622034, 710896, 1244068, 1421792, 2488136, 2843584, 4976272, 9952544, 19905088]

約数ペア:

[(1, 19905088), (2, 9952544), (4, 4976272), (7, 2843584), (8, 2488136), (14, 1421792), (16, 1244068), (28, 710896), (32, 622034), (56, 355448), (64, 311017), (112, 177724), (157, 126784), (224, 88862), (283, 70336), (314, 63392), (448, 44431), (566, 35168), (628, 31696), (1099, 18112), (1132, 17584), (1256, 15848), (1981, 10048), (2198, 9056), (2264, 8792), (2512, 7924), (3962, 5024), (4396, 4528)]