2080643560

素因数分解:

$2^3\times 5^1\times {\mathrm{2657}}^1\times {\mathrm{19577}}^1$

素因数の和:22245

約数の個数: 32

約数和(自身を含む): 4683449160

約数和(自身を除く): 2602805600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2657, 5314, 10628, 13285, 19577, 21256, 26570, 39154, 53140, 78308, 97885, 106280, 156616, 195770, 391540, 783080, 52016089, 104032178, 208064356, 260080445, 416128712, 520160890, 1040321780, 2080643560]

約数ペア:

[(1, 2080643560), (2, 1040321780), (4, 520160890), (5, 416128712), (8, 260080445), (10, 208064356), (20, 104032178), (40, 52016089), (2657, 783080), (5314, 391540), (10628, 195770), (13285, 156616), (19577, 106280), (21256, 97885), (26570, 78308), (39154, 53140)]