640829473

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{509}}^1$

素因数の和:661

約数の個数: 32

約数和(自身を含む): 732441600

約数和(自身を除く): 91612127

約数列:

[1, 19, 23, 43, 67, 437, 509, 817, 989, 1273, 1541, 2881, 9671, 11707, 18791, 21887, 29279, 34103, 54739, 66263, 222433, 415853, 503401, 647957, 784369, 1258997, 1466429, 9564619, 14903011, 27862151, 33727867, 640829473]

約数ペア:

[(1, 640829473), (19, 33727867), (23, 27862151), (43, 14903011), (67, 9564619), (437, 1466429), (509, 1258997), (817, 784369), (989, 647957), (1273, 503401), (1541, 415853), (2881, 222433), (9671, 66263), (11707, 54739), (18791, 34103), (21887, 29279)]