396945328

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61561}}^1$

素因数の和:61613

約数の個数: 40

約数和(自身を含む): 854973056

約数和(自身を除く): 458027728

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3224, 6448, 61561, 123122, 246244, 492488, 800293, 984976, 1600586, 1908391, 3201172, 3816782, 6402344, 7633564, 12804688, 15267128, 24809083, 30534256, 49618166, 99236332, 198472664, 396945328]

約数ペア:

[(1, 396945328), (2, 198472664), (4, 99236332), (8, 49618166), (13, 30534256), (16, 24809083), (26, 15267128), (31, 12804688), (52, 7633564), (62, 6402344), (104, 3816782), (124, 3201172), (208, 1908391), (248, 1600586), (403, 984976), (496, 800293), (806, 492488), (1612, 246244), (3224, 123122), (6448, 61561)]