128548815

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1\times {\mathrm{1523}}^1$

素因数の和:1879

約数の個数: 32

約数和(自身を含む): 218578176

約数和(自身を除く): 90029361

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 331, 993, 1523, 1655, 4569, 4965, 5627, 7615, 16881, 22845, 25891, 28135, 77673, 84405, 129455, 388365, 504113, 1512339, 2520565, 7561695, 8569921, 25709763, 42849605, 128548815]

約数ペア:

[(1, 128548815), (3, 42849605), (5, 25709763), (15, 8569921), (17, 7561695), (51, 2520565), (85, 1512339), (255, 504113), (331, 388365), (993, 129455), (1523, 84405), (1655, 77673), (4569, 28135), (4965, 25891), (5627, 22845), (7615, 16881)]