257788144

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{181031}}^1$

素因数の和:181128

約数の個数: 20

約数和(自身を含む): 505079280

約数和(自身を除く): 247291136

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 181031, 362062, 724124, 1448248, 2896496, 16111759, 32223518, 64447036, 128894072, 257788144]

約数ペア:

[(1, 257788144), (2, 128894072), (4, 64447036), (8, 32223518), (16, 16111759), (89, 2896496), (178, 1448248), (356, 724124), (712, 362062), (1424, 181031)]