128438115

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{21247}}^1$

素因数の和:21299

約数の個数: 32

約数和(自身を含む): 228458496

約数和(自身を除く): 100020381

約数列:

[1, 3, 5, 13, 15, 31, 39, 65, 93, 155, 195, 403, 465, 1209, 2015, 6045, 21247, 63741, 106235, 276211, 318705, 658657, 828633, 1381055, 1975971, 3293285, 4143165, 8562541, 9879855, 25687623, 42812705, 128438115]

約数ペア:

[(1, 128438115), (3, 42812705), (5, 25687623), (13, 9879855), (15, 8562541), (31, 4143165), (39, 3293285), (65, 1975971), (93, 1381055), (155, 828633), (195, 658657), (403, 318705), (465, 276211), (1209, 106235), (2015, 63741), (6045, 21247)]