20881487648

素因数分解:

$2^5\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1276999}}^1$

素因数の和:1277089

約数の個数: 48

約数和(自身を含む): 47626992000

約数和(自身を除く): 26745504352

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 73, 112, 146, 224, 292, 511, 584, 1022, 1168, 2044, 2336, 4088, 8176, 16352, 1276999, 2553998, 5107996, 8938993, 10215992, 17877986, 20431984, 35755972, 40863968, 71511944, 93220927, 143023888, 186441854, 286047776, 372883708, 652546489, 745767416, 1305092978, 1491534832, 2610185956, 2983069664, 5220371912, 10440743824, 20881487648]

約数ペア:

[(1, 20881487648), (2, 10440743824), (4, 5220371912), (7, 2983069664), (8, 2610185956), (14, 1491534832), (16, 1305092978), (28, 745767416), (32, 652546489), (56, 372883708), (73, 286047776), (112, 186441854), (146, 143023888), (224, 93220927), (292, 71511944), (511, 40863968), (584, 35755972), (1022, 20431984), (1168, 17877986), (2044, 10215992), (2336, 8938993), (4088, 5107996), (8176, 2553998), (16352, 1276999)]