6720640

素因数分解:

$2^7\times 5^1\times {\mathrm{10501}}^1$

素因数の和:10520

約数の個数: 32

約数和(自身を含む): 16068060

約数和(自身を除く): 9347420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 10501, 21002, 42004, 52505, 84008, 105010, 168016, 210020, 336032, 420040, 672064, 840080, 1344128, 1680160, 3360320, 6720640]

約数ペア:

[(1, 6720640), (2, 3360320), (4, 1680160), (5, 1344128), (8, 840080), (10, 672064), (16, 420040), (20, 336032), (32, 210020), (40, 168016), (64, 105010), (80, 84008), (128, 52505), (160, 42004), (320, 21002), (640, 10501)]