2688640

素因数分解:

$2^7\times 5^1\times {\mathrm{4201}}^1$

素因数の和:4220

約数の個数: 32

約数和(自身を含む): 6429060

約数和(自身を除く): 3740420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 4201, 8402, 16804, 21005, 33608, 42010, 67216, 84020, 134432, 168040, 268864, 336080, 537728, 672160, 1344320, 2688640]

約数ペア:

[(1, 2688640), (2, 1344320), (4, 672160), (5, 537728), (8, 336080), (10, 268864), (16, 168040), (20, 134432), (32, 84020), (40, 67216), (64, 42010), (80, 33608), (128, 21005), (160, 16804), (320, 8402), (640, 4201)]