20630000

素因数分解:

$2^4\times 5^4\times {\mathrm{2063}}^1$

素因数の和:2091

約数の個数: 50

約数和(自身を含む): 49971504

約数和(自身を除く): 29341504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2063, 2500, 4126, 5000, 8252, 10000, 10315, 16504, 20630, 33008, 41260, 51575, 82520, 103150, 165040, 206300, 257875, 412600, 515750, 825200, 1031500, 1289375, 2063000, 2578750, 4126000, 5157500, 10315000, 20630000]

約数ペア:

[(1, 20630000), (2, 10315000), (4, 5157500), (5, 4126000), (8, 2578750), (10, 2063000), (16, 1289375), (20, 1031500), (25, 825200), (40, 515750), (50, 412600), (80, 257875), (100, 206300), (125, 165040), (200, 103150), (250, 82520), (400, 51575), (500, 41260), (625, 33008), (1000, 20630), (1250, 16504), (2000, 10315), (2063, 10000), (2500, 8252), (4126, 5000)]