678647984

素因数分解:

$2^4\times 7^1\times {\mathrm{499}}^1\times {\mathrm{12143}}^1$

素因数の和:12657

約数の個数: 40

約数和(自身を含む): 1505856000

約数和(自身を除く): 827208016

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 499, 998, 1996, 3493, 3992, 6986, 7984, 12143, 13972, 24286, 27944, 48572, 55888, 85001, 97144, 170002, 194288, 340004, 680008, 1360016, 6059357, 12118714, 24237428, 42415499, 48474856, 84830998, 96949712, 169661996, 339323992, 678647984]

約数ペア:

[(1, 678647984), (2, 339323992), (4, 169661996), (7, 96949712), (8, 84830998), (14, 48474856), (16, 42415499), (28, 24237428), (56, 12118714), (112, 6059357), (499, 1360016), (998, 680008), (1996, 340004), (3493, 194288), (3992, 170002), (6986, 97144), (7984, 85001), (12143, 55888), (13972, 48572), (24286, 27944)]