28718648

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:348

約数の個数: 64

約数和(自身を含む): 64696320

約数和(自身を除く): 35977672

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 71, 124, 142, 217, 233, 248, 284, 434, 466, 497, 568, 868, 932, 994, 1631, 1736, 1864, 1988, 2201, 3262, 3976, 4402, 6524, 7223, 8804, 13048, 14446, 15407, 16543, 17608, 28892, 30814, 33086, 50561, 57784, 61628, 66172, 101122, 115801, 123256, 132344, 202244, 231602, 404488, 463204, 512833, 926408, 1025666, 2051332, 3589831, 4102664, 7179662, 14359324, 28718648]

約数ペア:

[(1, 28718648), (2, 14359324), (4, 7179662), (7, 4102664), (8, 3589831), (14, 2051332), (28, 1025666), (31, 926408), (56, 512833), (62, 463204), (71, 404488), (124, 231602), (142, 202244), (217, 132344), (233, 123256), (248, 115801), (284, 101122), (434, 66172), (466, 61628), (497, 57784), (568, 50561), (868, 33086), (932, 30814), (994, 28892), (1631, 17608), (1736, 16543), (1864, 15407), (1988, 14446), (2201, 13048), (3262, 8804), (3976, 7223), (4402, 6524)]