7991280.00000000

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{21001}}^1$

素因数の和:21027

約数の個数: 64

約数和(自身を含む): 257064480

約数和(自身を除く): 162980000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 21001, 42002, 84004, 105005, 147007, 168008, 210010, 294014, 336016, 420020, 588028, 672032, 735035, 840040, 1176056, 1344064, 1470070, 1680080, 2352112, 2688128, 2940140, 3360160, 4704224, 5880280, 6720320, 9408448, 11760560, 13440640, 18816896, 23521120, 47042240, 94084480]

約数ペア:

[(1, 94084480), (2, 47042240), (4, 23521120), (5, 18816896), (7, 13440640), (8, 11760560), (10, 9408448), (14, 6720320), (16, 5880280), (20, 4704224), (28, 3360160), (32, 2940140), (35, 2688128), (40, 2352112), (56, 1680080), (64, 1470070), (70, 1344064), (80, 1176056), (112, 840040), (128, 735035), (140, 672032), (160, 588028), (224, 420020), (280, 336016), (320, 294014), (448, 210010), (560, 168008), (640, 147007), (896, 105005), (1120, 84004), (2240, 42002), (4480, 21001)]