989780402

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{197}}^1\times {\mathrm{1117}}^1$

素因数の和:1502

約数の個数: 32

約数和(自身を含む): 1617728112

約数和(自身を除く): 627947710

約数列:

[1, 2, 13, 26, 173, 197, 346, 394, 1117, 2234, 2249, 2561, 4498, 5122, 14521, 29042, 34081, 68162, 193241, 220049, 386482, 440098, 443053, 886106, 2512133, 2860637, 5024266, 5721274, 38068477, 76136954, 494890201, 989780402]

約数ペア:

[(1, 989780402), (2, 494890201), (13, 76136954), (26, 38068477), (173, 5721274), (197, 5024266), (346, 2860637), (394, 2512133), (1117, 886106), (2234, 443053), (2249, 440098), (2561, 386482), (4498, 220049), (5122, 193241), (14521, 68162), (29042, 34081)]