27639440

素因数分解:

$2^4\times 5^1\times {\mathrm{439}}^1\times {\mathrm{787}}^1$

素因数の和:1239

約数の個数: 40

約数和(自身を含む): 64489920

約数和(自身を除く): 36850480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 439, 787, 878, 1574, 1756, 2195, 3148, 3512, 3935, 4390, 6296, 7024, 7870, 8780, 12592, 15740, 17560, 31480, 35120, 62960, 345493, 690986, 1381972, 1727465, 2763944, 3454930, 5527888, 6909860, 13819720, 27639440]

約数ペア:

[(1, 27639440), (2, 13819720), (4, 6909860), (5, 5527888), (8, 3454930), (10, 2763944), (16, 1727465), (20, 1381972), (40, 690986), (80, 345493), (439, 62960), (787, 35120), (878, 31480), (1574, 17560), (1756, 15740), (2195, 12592), (3148, 8780), (3512, 7870), (3935, 7024), (4390, 6296)]