1640580016

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{3307621}}^1$

素因数の和:3307660

約数の個数: 20

約数和(自身を含む): 3281161024

約数和(自身を除く): 1640581008

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 3307621, 6615242, 13230484, 26460968, 52921936, 102536251, 205072502, 410145004, 820290008, 1640580016]

約数ペア:

[(1, 1640580016), (2, 820290008), (4, 410145004), (8, 205072502), (16, 102536251), (31, 52921936), (62, 26460968), (124, 13230484), (248, 6615242), (496, 3307621)]