138859168

素因数分解:

$2^5\times 7^1\times {\mathrm{31}}^1\times {\mathrm{19997}}^1$

素因数の和:20045

約数の個数: 48

約数和(自身を含む): 322527744

約数和(自身を除く): 183668576

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 112, 124, 217, 224, 248, 434, 496, 868, 992, 1736, 3472, 6944, 19997, 39994, 79988, 139979, 159976, 279958, 319952, 559916, 619907, 639904, 1119832, 1239814, 2239664, 2479628, 4339349, 4479328, 4959256, 8678698, 9918512, 17357396, 19837024, 34714792, 69429584, 138859168]

約数ペア:

[(1, 138859168), (2, 69429584), (4, 34714792), (7, 19837024), (8, 17357396), (14, 9918512), (16, 8678698), (28, 4959256), (31, 4479328), (32, 4339349), (56, 2479628), (62, 2239664), (112, 1239814), (124, 1119832), (217, 639904), (224, 619907), (248, 559916), (434, 319952), (496, 279958), (868, 159976), (992, 139979), (1736, 79988), (3472, 39994), (6944, 19997)]