1998921605

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{2749}}^1\times {\mathrm{6323}}^1$

素因数の和:9100

約数の個数: 16

約数和(自身を含む): 2504304000

約数和(自身を除く): 505382395

約数列:

[1, 5, 23, 115, 2749, 6323, 13745, 31615, 63227, 145429, 316135, 727145, 17381927, 86909635, 399784321, 1998921605]

約数ペア:

[(1, 1998921605), (5, 399784321), (23, 86909635), (115, 17381927), (2749, 727145), (6323, 316135), (13745, 145429), (31615, 63227)]