279240320

素因数分解:

$2^7\times 5^1\times {\mathrm{436313}}^1$

素因数の和:436332

約数の個数: 32

約数和(自身を含む): 667560420

約数和(自身を除く): 388320100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 436313, 872626, 1745252, 2181565, 3490504, 4363130, 6981008, 8726260, 13962016, 17452520, 27924032, 34905040, 55848064, 69810080, 139620160, 279240320]

約数ペア:

[(1, 279240320), (2, 139620160), (4, 69810080), (5, 55848064), (8, 34905040), (10, 27924032), (16, 17452520), (20, 13962016), (32, 8726260), (40, 6981008), (64, 4363130), (80, 3490504), (128, 2181565), (160, 1745252), (320, 872626), (640, 436313)]