2001020728

素因数分解:

$2^3\times 7^1\times {\mathrm{1867}}^1\times {\mathrm{19139}}^1$

素因数の和:21019

約数の個数: 32

約数和(自身を含む): 4290422400

約数和(自身を除く): 2289401672

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 1867, 3734, 7468, 13069, 14936, 19139, 26138, 38278, 52276, 76556, 104552, 133973, 153112, 267946, 535892, 1071784, 35732513, 71465026, 142930052, 250127591, 285860104, 500255182, 1000510364, 2001020728]

約数ペア:

[(1, 2001020728), (2, 1000510364), (4, 500255182), (7, 285860104), (8, 250127591), (14, 142930052), (28, 71465026), (56, 35732513), (1867, 1071784), (3734, 535892), (7468, 267946), (13069, 153112), (14936, 133973), (19139, 104552), (26138, 76556), (38278, 52276)]