840505964

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{139991}}^1$

素因数の和:140093

約数の個数: 24

約数和(自身を含む): 1567910400

約数和(自身を除く): 727404436

約数列:

[1, 2, 4, 19, 38, 76, 79, 158, 316, 1501, 3002, 6004, 139991, 279982, 559964, 2659829, 5319658, 10639316, 11059289, 22118578, 44237156, 210126491, 420252982, 840505964]

約数ペア:

[(1, 840505964), (2, 420252982), (4, 210126491), (19, 44237156), (38, 22118578), (76, 11059289), (79, 10639316), (158, 5319658), (316, 2659829), (1501, 559964), (3002, 279982), (6004, 139991)]