20159856

素因数分解:

$2^4\times 3^2\times {\mathrm{139999}}^1$

素因数の和:140013

約数の個数: 30

約数和(自身を含む): 56420000

約数和(自身を除く): 36260144

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 139999, 279998, 419997, 559996, 839994, 1119992, 1259991, 1679988, 2239984, 2519982, 3359976, 5039964, 6719952, 10079928, 20159856]

約数ペア:

[(1, 20159856), (2, 10079928), (3, 6719952), (4, 5039964), (6, 3359976), (8, 2519982), (9, 2239984), (12, 1679988), (16, 1259991), (18, 1119992), (24, 839994), (36, 559996), (48, 419997), (72, 279998), (144, 139999)]