20408909888

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{16783643}}^1$

素因数の和:16783674

約数の個数: 28

約数和(自身を含む): 42630455760

約数和(自身を除く): 22221545872

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 152, 304, 608, 1216, 16783643, 33567286, 67134572, 134269144, 268538288, 318889217, 537076576, 637778434, 1074153152, 1275556868, 2551113736, 5102227472, 10204454944, 20408909888]

約数ペア:

[(1, 20408909888), (2, 10204454944), (4, 5102227472), (8, 2551113736), (16, 1275556868), (19, 1074153152), (32, 637778434), (38, 537076576), (64, 318889217), (76, 268538288), (152, 134269144), (304, 67134572), (608, 33567286), (1216, 16783643)]