12480640

素因数分解:

$2^7\times 5^1\times {\mathrm{19501}}^1$

素因数の和:19520

約数の個数: 32

約数和(自身を含む): 29838060

約数和(自身を除く): 17357420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 19501, 39002, 78004, 97505, 156008, 195010, 312016, 390020, 624032, 780040, 1248064, 1560080, 2496128, 3120160, 6240320, 12480640]

約数ペア:

[(1, 12480640), (2, 6240320), (4, 3120160), (5, 2496128), (8, 1560080), (10, 1248064), (16, 780040), (20, 624032), (32, 390020), (40, 312016), (64, 195010), (80, 156008), (128, 97505), (160, 78004), (320, 39002), (640, 19501)]