217542784840

素因数分解:

$2^3\times 5^1\times {\mathrm{359}}^1\times {\mathrm{431}}^1\times {\mathrm{35149}}^1$

素因数の和:35950

約数の個数: 64

約数和(自身を含む): 491987520000

約数和(自身を除く): 274444735160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 359, 431, 718, 862, 1436, 1724, 1795, 2155, 2872, 3448, 3590, 4310, 7180, 8620, 14360, 17240, 35149, 70298, 140596, 154729, 175745, 281192, 309458, 351490, 618916, 702980, 773645, 1237832, 1405960, 1547290, 3094580, 6189160, 12618491, 15149219, 25236982, 30298438, 50473964, 60596876, 63092455, 75746095, 100947928, 121193752, 126184910, 151492190, 252369820, 302984380, 504739640, 605968760, 5438569621, 10877139242, 21754278484, 27192848105, 43508556968, 54385696210, 108771392420, 217542784840]

約数ペア:

[(1, 217542784840), (2, 108771392420), (4, 54385696210), (5, 43508556968), (8, 27192848105), (10, 21754278484), (20, 10877139242), (40, 5438569621), (359, 605968760), (431, 504739640), (718, 302984380), (862, 252369820), (1436, 151492190), (1724, 126184910), (1795, 121193752), (2155, 100947928), (2872, 75746095), (3448, 63092455), (3590, 60596876), (4310, 50473964), (7180, 30298438), (8620, 25236982), (14360, 15149219), (17240, 12618491), (35149, 6189160), (70298, 3094580), (140596, 1547290), (154729, 1405960), (175745, 1237832), (281192, 773645), (309458, 702980), (351490, 618916)]