205890642

素因数分解:

$2^1\times 3^2\times {\mathrm{89}}^1\times {\mathrm{128521}}^1$

素因数の和:128618

約数の個数: 24

約数和(自身を含む): 451112220

約数和(自身を除く): 245221578

約数列:

[1, 2, 3, 6, 9, 18, 89, 178, 267, 534, 801, 1602, 128521, 257042, 385563, 771126, 1156689, 2313378, 11438369, 22876738, 34315107, 68630214, 102945321, 205890642]

約数ペア:

[(1, 205890642), (2, 102945321), (3, 68630214), (6, 34315107), (9, 22876738), (18, 11438369), (89, 2313378), (178, 1156689), (267, 771126), (534, 385563), (801, 257042), (1602, 128521)]