671664

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{1999}}^1$

素因数の和:2017

約数の個数: 40

約数和(自身を含む): 1984000

約数和(自身を除く): 1312336

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 1999, 3998, 5997, 7996, 11994, 13993, 15992, 23988, 27986, 31984, 41979, 47976, 55972, 83958, 95952, 111944, 167916, 223888, 335832, 671664]

約数ペア:

[(1, 671664), (2, 335832), (3, 223888), (4, 167916), (6, 111944), (7, 95952), (8, 83958), (12, 55972), (14, 47976), (16, 41979), (21, 31984), (24, 27986), (28, 23988), (42, 15992), (48, 13993), (56, 11994), (84, 7996), (112, 5997), (168, 3998), (336, 1999)]